A respirator belt thermoforming equipment
By designing a limiting structure and an electric push rod drive for the thermoforming equipment of the breathing mask strap, the problem of positional misalignment between the ear loop and the mask during thermoforming welding was solved, achieving efficient and accurate thermoforming welding, and improving production efficiency and finished product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU BAIDEFU NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-03
AI Technical Summary
In the current production process of breathing masks, there are problems such as positional misalignment, displacement, or incomplete welding when the ear loops are hot-pressed to the mask, which affects the appearance of the finished mask.
A thermoforming device for breathing mask straps was designed, including a control seat, a moving seat, and a thermoforming plate. The ear loops are quickly and accurately positioned by the limiting structure of the feeding assembly, and the thermoforming plate is driven by an electric push rod for heat sealing. The mechanical structure of the limiting plate and the contact rod triggering the electric push rod achieves accurate positioning and rapid thermoforming of the ear loops and the mask.
This improved the alignment accuracy between the ear loops and the face mask, reduced alignment time, increased production cycle time, and ensured the accuracy of hot-press welding and the quality of the finished product.
Smart Images
Figure CN224446901U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot press molding machine technology, specifically to a hot press molding equipment for a breathing mask belt. Background Technology
[0002] With the continuous improvement of public health emergency prevention and control and occupational protection standards, respiratory protective masks such as N95, KN95, and dust masks are increasingly widely used in medical, industrial, construction, and daily travel fields. As an important component of the mask structure, the connection between the ear loops / headbands and the mask body is mainly completed through thermoforming during the production process of respiratory masks.
[0003] As shown in the reference case "A Surgical Mask Earloop Folding Hot Press Forming Equipment" announcement number "CN213620659U", during use, the first control mechanism controls the hot press plate to move closer or further away, thereby achieving hot pressing of the earloop on the surgical mask and shaping the earloop inside the surgical mask, thus reducing the space occupied by the surgical mask;
[0004] In actual use, after aligning and positioning the ear loops with the mask, the entire mask is then fed into the hot pressing mechanism for welding. If the feeding angle is slightly off or the feeding speed is too fast, the ear loops are easily misaligned, resulting in problems such as the hot pressing weld points not being centered, misaligned, or having poor welds, which in turn affects the appearance of the finished mask.
[0005] Based on this, the present invention designs a thermoforming device for a breathing mask to solve the above problems. Utility Model Content
[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a thermoforming equipment for breathing mask belts.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A respirator tape thermoforming device includes a control base, a movable base, and a thermoforming plate. The movable base is located on top of the control base, and the thermoforming plate is located on top of the movable base. A feeding thermoforming mechanism is provided on one side of the movable base to facilitate feeding and fixed thermoforming. The feeding thermoforming mechanism includes two guide frames fixedly installed on the surface of the movable base, a feeding assembly is provided between the two guide frames, and a thermoforming assembly is provided on the outer side of the thermoforming plate.
[0009] Furthermore, the feeding assembly includes a feeding plate slidably mounted between two guide frames. The feeding plate is located at the bottom of the hot press plate, and a heat-conducting plate is provided on the top of the feeding plate. One side of the heat-conducting plate is hinged to the feeding plate.
[0010] Furthermore, the feeding assembly also includes limiting plates fixedly installed on adjacent sides of the two guide frames, with one side of the two limiting plates being inclined, and both limiting plates being located on the top of the heat-conducting plate.
[0011] Furthermore, both guide frames are L-shaped, and a contact plate is fixedly installed between the two guide frames, with the contact plate located on one side of the feeding plate.
[0012] Furthermore, the hot pressing assembly includes an electric push rod fixedly installed on one side of the control seat. The electric push rod is located on the top of the hot pressing plate and is fixedly connected to the hot pressing plate.
[0013] Furthermore, a wrapping sleeve is fixedly installed on the outer side of the hot press plate, and the volume of the wrapping sleeve is adapted to the outer side of the feeding plate.
[0014] Furthermore, a trigger plate is fixedly installed on the other side of the contact plate, and two guide tubes are fixedly installed on the surface of the contact plate. A contact rod is slidably installed inside the guide tube, and one end of the contact plate extends out of the guide tube and is located on the side of the discharge plate, while the other end of the contact rod extends out of the guide tube and is located on the side of the trigger plate.
[0015] Furthermore, a spring is fitted on the outer side of the contact rod, and the other end of the spring is fixedly connected to the inner wall of the conduit.
[0016] Furthermore, the movable seat is slidably mounted on the outside of the control seat, a drive plate is fixedly mounted on the bottom of the movable seat, a screw is fixedly mounted on the bottom of the drive plate, and a screw tube is rotatably mounted on the surface of the control seat, with the screw tube threadedly connected to the screw.
[0017] Furthermore, a motor is fixedly mounted on the surface of the control base, and gears are fixedly mounted on one side of both the motor and the solenoid, with the two gears meshing with each other.
[0018] Beneficial effects
[0019] 1. During use, the limiting structure of the feeding component can quickly and accurately position the ear loop. The feeding component can also serve as a feeding and temporary clamping structure, making it more efficient and convenient to insert the ear loop, reducing alignment time and improving the overall production cycle. The heat pressing component can quickly press down to heat seal after the ear loop and mask are accurately positioned, which is very convenient.
[0020] 2. When the feeding plate moves and contacts the contact plate, it synchronously drives the two contact rods to contact the trigger plate, thereby triggering the electric push rod to start, allowing the hot press plate to move down for heat sealing. When the feeding plate pushes the contact plate to generate a trigger action, the contact rod slides towards the trigger plate under the compression of the spring. When the feeding plate returns to the initial position, the spring automatically resets. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0022] Figure 1 This utility model provides a three-dimensional main structure of a respirator belt hot-press forming equipment.
[0023] Figure 2 This is a schematic diagram of the feeding and hot pressing mechanism of a respirator belt hot pressing forming equipment according to the present invention;
[0024] Figure 3 This is a schematic diagram of the feeding plate and guide frame structure of a respirator with a thermoforming equipment for a respirator according to this utility model;
[0025] Figure 4 This is a schematic diagram of the separation structure of the conduit and contact rod of a thermoforming equipment for a breathing mask according to this utility model;
[0026] Figure 5 This is a schematic diagram of the hot pressing component structure of a hot pressing molding equipment for a breathing mask according to this utility model.
[0027] The labels in the diagram represent:
[0028] 1. Control base; 2. Moving base; 21. Hot press plate; 3. Feeding hot press mechanism; 31. Guide frame; 32. Feeding assembly; 321. Feeding plate; 322. Heat-conducting plate; 323. Limiting plate; 324. Contact plate; 325. Guide tube; 326. Trigger plate; 327. Contact rod; 328. Spring; 33. Hot press assembly; 331. Electric push rod; 332. Wrapping sleeve; 333. Screw tube; 334. Screw; 335. Drive plate; 336. Motor. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0030] The present invention will be further described below with reference to the embodiments.
[0031] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-5 A respirator tape hot-pressing molding device includes a control base 1, a movable base 2, and a hot-pressing plate 21. The movable base 2 is located on top of the control base 1, and the hot-pressing plate 21 is located on top of the movable base 2. A material feeding hot-pressing mechanism 3 is provided on one side of the movable base 2 to facilitate material feeding and fixed hot pressing. The material feeding hot-pressing mechanism 3 includes two guide frames 31 fixedly installed on the surface of the movable base 2, a material feeding component 32 is provided between the two guide frames 31, and a hot-pressing component 33 is provided on the outside of the hot-pressing plate 21.
[0032] In this embodiment of the utility model, the ear loop can be quickly and accurately positioned by the limiting structure of the feeding component 32 during use. The feeding component 32 can also serve as a feeding and temporary clamping structure, making it more efficient and convenient to insert the ear loop, reducing alignment time and improving the overall production cycle. The hot pressing component 33 can quickly press down to heat seal after the ear loop and the mask are accurately positioned, which is very convenient.
[0033] Existing respirator thermoforming equipment typically includes a control base 1, a moving platform, a heating device, a hot press plate 21, and other basic structures. The feeding assembly 32 is located between guide frames 31 and is slidably positioned below the hot press plate 21, without affecting the vertical movement of the hot press plate 21 or the heating process. The hot press assembly 33 is located on the outside of the hot press plate 21 and is used to achieve rapid pressing of the ear loop position. Therefore, it does not affect the original operation process and functional layout of the hot press machine.
[0034] In some embodiments, such as Figure 2 , Figure 3 and Figure 4 As shown, in a preferred embodiment of the present invention, the feeding assembly 32 includes a feeding plate 321 slidably installed between two guide frames 31. The feeding plate 321 is located at the bottom of the hot press plate 21, and a heat-conducting plate 322 is provided on the top of the feeding plate 321. One side of the heat-conducting plate 322 is hinged to the feeding plate 321.
[0035] In this embodiment of the utility model, the ear loop and the mask body can be aligned and placed in the positioning area above the feeding plate 321. Then, by rotating the heat conduction plate 322, it is flipped downwards to cover the upper part of the ear loop. The overlapping connection position of the ear loop and the mask is pre-pressed and clamped to ensure that they are in an accurate alignment state before hot pressing, and to prevent displacement or twisting during the process of feeding into the hot pressing plate 21.
[0036] The feeding assembly 32 also includes a limiting plate 323 fixedly installed on one side of the two guide frames 31. One side of the two limiting plates 323 is set as an inclined surface, and both limiting plates 323 are located on the top of the heat-conducting plate 322.
[0037] In this embodiment of the utility model, when the heat-conducting plate 322 is flipped to the pressed state and clamps the ear loop and the face mask, as the feeding plate 321 slides along the guide frame 31, the upper end of the heat-conducting plate 322 will come into contact with the inclined surfaces of the two limiting plates 323. Due to the structural angle restriction, the heat-conducting plate 322 cannot be flipped up, thereby achieving the locking and limiting of the heat-conducting plate 322.
[0038] Both guide frames 31 are L-shaped, and a contact plate 324 is fixedly installed between the two guide frames 31. The contact plate 324 is located on one side of the feeding plate 321.
[0039] In this embodiment of the utility model, when the feeding plate 321 slides between the two guide frames 31 to the preset limit position, one side of it contacts the contact plate 324 to form a mechanical stop limit.
[0040] In some embodiments, such as Figure 2 , Figure 4 and Figure 5 As shown, in a preferred embodiment of the present invention, the hot pressing assembly 33 includes an electric push rod 331 fixedly installed on one side of the control base 1. The electric push rod 331 is located on the top of the hot pressing plate 21 and is fixedly connected to the hot pressing plate 21.
[0041] In this embodiment of the utility model, the electric push rod 331 can push the hot press plate 21 downward to make it contact the ear loops and mask body placed on the feeding plate 321, and complete the heat sealing under the set pressure and time conditions. After the heat pressing is completed, the electric push rod 331 automatically drives the hot press plate 21 to rise and return to the initial position.
[0042] A wrapping sleeve 332 is fixedly installed on the outside of the hot press plate 21, and the volume of the wrapping sleeve 332 is adapted to the outside of the feeding plate 321.
[0043] In this embodiment of the utility model, when the electric push rod 331 drives the hot press plate 21 to press down, the wrapping sleeve 332 moves down synchronously with the hot press plate 21, and its inner wall matches and contacts the outer contour of the feeding plate 321, thereby wrapping and limiting the feeding plate 321 during the pressing process and improving the hot pressing effect.
[0044] A trigger plate 326 is fixedly installed on the other side of the contact plate 324. Two guide tubes 325 are fixedly installed on the surface of the contact plate 324. A contact rod 327 is slidably installed inside the guide tube 325. One end of the contact plate 324 extends out of the guide tube 325 and is located on the side of the discharge plate 321. The other end of the contact rod 327 extends out of the guide tube 325 and is located on the side of the trigger plate 326.
[0045] In this embodiment of the utility model, when the feeding plate 321 moves and contacts the contact plate 324, it synchronously drives the two contact rods 327 to contact the trigger plate 326, thereby triggering the electric push rod 331 to start and causing the hot press plate 21 to move down.
[0046] A spring 328 is sleeved on the outside of the contact rod 327, and the other end of the spring 328 is fixedly connected to the inner wall of the conduit 325.
[0047] In this embodiment of the utility model, when the feeding plate 321 pushes the contact plate 324 to generate a trigger action, the contact rod 327 slides towards the trigger plate 326 under the compression of the spring 328. When the feeding plate 321 returns to the initial position, the spring 328 automatically resets and pushes the contact rod 327 back to the original position of the guide tube 325.
[0048] The movable seat 2 is slidably mounted on the outside of the control seat 1. A drive plate 335 is fixedly mounted on the bottom of the movable seat 2. A screw 334 is fixedly mounted on the bottom of the drive plate 335. A screw tube 333 is rotatably mounted on the surface of the control seat 1. The screw tube 333 is threadedly connected to the screw 334.
[0049] In this embodiment of the utility model, when the solenoid 333 rotates, it moves with the screw 334 in a threaded motion, causing the drive plate 335 and the moving seat 2 above it to slide along the surface of the control seat 1, thereby achieving precise position adjustment of the hot pressing assembly 33 in the horizontal direction.
[0050] A motor 336 is fixedly mounted on the surface of the control base 1. Gears are fixedly mounted on one side of both the motor 336 and the solenoid 333, and the two gears are meshed together.
[0051] In this embodiment of the utility model, the motor 336 starts and drives the solenoid 333 to rotate through the meshing motion of two corresponding gears, so that the solenoid 333 and the screw 334 perform threaded motion. Under the drive of the solenoid 333, the screw 334 realizes vertical lifting and lowering, thereby realizing precise position adjustment of the hot pressing assembly 33 in the vertical direction.
[0052] In this embodiment of the invention, the ear loops and the face mask body are placed above the feeding plate 321 in the feeding assembly 32, and the ear loops and face mask are pressed together and pre-positioned by flipping the heat-conducting plate 322. As the feeding plate 321 slides within the guide frame 31, the upper end of the heat-conducting plate 322 contacts the inclined surface of the limiting plate 323, forming a limiting clamp to prevent the heat-conducting plate 322 from rebounding. When the feeding plate 321 slides to its end, it contacts the contact plate 324 and pushes the contact rod 327 therein. Under the action of the spring 328, the contact rod 327 pushes the trigger plate 326 forward, triggering the electric push rod 331 to start. The electric push rod 331 moves downward. The hot press plate 21 is pushed to perform hot pressing, completing the fusion and bonding of the ear loops and the face mask. During the pressing process, the wrapping sleeve 332 covers the periphery of the feeding plate 321. After the hot pressing is completed, the electric push rod 331 drives the hot press plate 21 to return to the initial position, and the feeding assembly 32 can be reset to prepare for the next feeding. At the same time, the motor 336 installed on the control base 1 drives the meshing gear to drive the screw tube 333 to rotate. The screw tube 333 is threadedly connected to the lower screw 334, which in turn drives the drive plate 335 and the moving seat 2 above it to slide on the surface of the control base 1, realizing the lateral fine adjustment of the position of the hot pressing station to adapt to the hot pressing requirements of different specifications of face masks.
[0053] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A thermoforming device for a breathing mask belt, comprising a control base (1), a movable base (2), and a thermoforming plate (21), characterized in that: The movable seat (2) is located on top of the control seat (1), and the hot press plate (21) is located on top of the movable seat (2); The material feeding hot pressing mechanism (3) is provided on one side of the movable seat (2) for facilitating material feeding and fixed hot pressing. The feeding hot pressing mechanism (3) includes two guide frames (31) fixedly installed on the surface of the movable seat (2), a feeding assembly (32) is provided between the two guide frames (31), and a hot pressing assembly (33) is provided on the outside of the hot pressing plate (21).
2. The respiratory mask band thermoforming apparatus of claim 1, wherein, The feeding assembly (32) includes a feeding plate (321) slidably mounted between two guide frames (31), the feeding plate (321) being located at the bottom of the hot press plate (21), and a heat-conducting plate (322) being provided on the top of the feeding plate (321), one side of which is hinged to the feeding plate (321).
3. The respiratory mask band thermoforming apparatus of claim 1, wherein, The feeding assembly (32) also includes a limiting plate (323) fixedly installed on one side of the two guide frames (31). One side of the two limiting plates (323) is set as an inclined surface, and both limiting plates (323) are located on the top of the heat-conducting plate (322).
4. The respiratory mask band thermoforming apparatus of claim 1, wherein, Both guide frames (31) are L-shaped, and a contact plate (324) is fixedly installed between the two guide frames (31). The contact plate (324) is located on one side of the feeding plate (321).
5. The respiratory mask band thermoforming apparatus of claim 1, wherein, The hot pressing assembly (33) includes an electric push rod (331) fixedly installed on one side of the control seat (1). The electric push rod (331) is located on the top of the hot pressing plate (21) and is fixedly connected to the hot pressing plate (21).
6. The respiratory mask band thermoforming apparatus of claim 1, wherein, A wrapping sleeve (332) is fixedly installed on the outside of the hot press plate (21), and the volume of the wrapping sleeve (332) is adapted to the outside of the feeding plate (321).
7. The respiratory mask band thermoforming apparatus of claim 4, wherein, A trigger plate (326) is fixedly installed on the other side of the contact plate (324). Two guide tubes (325) are fixedly installed on the surface of the contact plate (324). A contact rod (327) is slidably installed inside the guide tube (325). One end of the contact plate (324) extends out of the guide tube (325) and is located on the side of the feeding plate (321). The other end of the contact rod (327) extends out of the guide tube (325) and is located on the side of the trigger plate (326).
8. The respiratory mask band thermoforming apparatus of claim 7, wherein, A spring (328) is sleeved on the outside of the contact rod (327), and the other end of the spring (328) is fixedly connected to the inner wall of the conduit (325).
9. The respiratory mask band thermoforming apparatus of claim 1, wherein, The movable seat (2) is slidably mounted on the outside of the control seat (1). A drive plate (335) is fixedly mounted on the bottom of the movable seat (2). A screw (334) is fixedly mounted on the bottom of the drive plate (335). A screw tube (333) is rotatably mounted on the surface of the control seat (1). The screw tube (333) is threadedly connected to the screw (334).
10. The respiratory mask band thermoforming apparatus of claim 1, wherein, A motor (336) is fixedly mounted on the surface of the control base (1). Gears are fixedly mounted on one side of both the motor (336) and the solenoid (333), and the two gears are meshed with each other.