Needle machine with long service life
By adopting a driving crank structure with a lift balance assembly and a curved handle in the needle-punching machine, the problem of deformation caused by the crank imbalance is solved in the existing needle-punching machine due to the unbalanced crank force, and the equipment service life and production efficiency are increased.
Patent Information
- Application Number
- CN202421563847.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-04
AI Technical Summary
After long-term use, the existing needle-punching machines are prone to deformation due to the unbalanced crank force, resulting in low production stability and efficiency, and require frequent replacement or repair.
An acupuncture machine including a pre-needle machine, a tension adjusting frame and a secondary acupuncture machine is designed. The driving crank structure is adopted with a combination of a lift balance assembly and a curved handle. Through the opposite movement of the lifting counterweight block and the lifting connection block, the pressure on the drive crank is partially offset by the inertial motion.
It effectively extends the service life of the needle-punching machine, improves the operating stability and production efficiency of the equipment, and reduces the frequency of maintenance and replacement.
Smart Images
Figure CN222908247U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of non-woven fabric production, and particularly relates to a needling machine with a long service life. Background Art
[0002] Non-woven fabric is a fabric formed without spinning and weaving. It only arranges textile staple fibers or filaments in a directional or random manner to form a fiber web structure, and then is strengthened by mechanical, thermal bonding or chemical methods. It is a new type of fiber product directly formed by using polymer chips, staple fibers or filaments through various fiber web forming methods and consolidation technologies, with a soft, breathable and planar structure. Non-woven fabrics have a wide range of application fields. In the aspect of medical and health fabrics, they are commonly used to make surgical gowns, protective clothing, disinfection package cloths, masks, diapers, sanitary napkins for women, etc.
[0003] When making medical and health fabrics, after the fiber cotton material is opened, formed into a web and laid, it needs to go through a needling process. Long needles are used to punch holes in multiple layers of cotton webs, so that the multiple layers of cotton webs are hooked and entangled with each other, and at the same time, the cotton webs are covered with ventilation holes to improve the air permeability of the final product. On the needling machine, the lifting drive mechanism drives the needle plate to reciprocate up and down. The needle plate is evenly covered with long needles and continuously needles the cotton web passing below. Since the needle plate is relatively long, multiple connection points need to be set between the lifting drive mechanism and the needle plate, and the connection points are driven to move simultaneously to ensure the levelness of the needle plate. Generally, a set of rotary motors is used to drive the crank to rotate, and the crank is connected to multiple sets of lifting rods at the same time and drives the needle plate to lift and lower at the same time. However, during the reciprocating lifting process, due to the inertial effect of the needle plate, the force on the crank is unbalanced. After long-term use, the crank is prone to deformation and needs to be replaced or repaired, which is not conducive to the stability and efficiency of production. Therefore, it is necessary to make a needling machine with a long service life to solve the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a needling machine with a long service life to solve the problems mentioned in the background art.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A needling machine with a long service life includes a pre-needling machine, a tension adjusting frame and a secondary needling machine arranged in sequence from back to front. The pre-needling machine includes a seventh frame, a connecting bracket, a cotton web clamping mechanism, a cotton web feeding mechanism, a cotton web discharging mechanism and a needling mechanism. The connecting bracket is fixed in the middle of the seventh frame. The cotton web clamping mechanism is fixed on the seventh frame and corresponds to the lower part of the connecting bracket. The cotton web feeding mechanism is fixed on the seventh frame and corresponds to the rear side of the cotton web clamping mechanism. The cotton web discharging mechanism is fixed on the seventh frame and corresponds to the front side of the cotton web clamping mechanism;
[0007] The needle punching mechanism includes a seventh rotation drive assembly, a rotation bracket, a drive crank, a lifting drive assembly, a lifting balance assembly, and a needle plate. The seventh rotation drive assembly is fixed on the seventh machine frame. Multiple groups of rotation brackets are provided and fixed on the upper side of the seventh machine frame. The drive crank is provided with multiple groups of first bent handle parts, second bent handle parts, and straight handle parts. The first bent handle parts and the second bent handle parts are paired and have opposite bending directions. The straight handle part is rotatably installed on the seventh machine frame. The seventh rotation drive assembly is drivingly connected to the end of the drive crank. The lifting drive assembly includes a first connecting handle, a lifting connecting block, a first guide post, and a lifting vertical rod. The upper end of the first connecting handle is hinged to the first bent handle part, and the lower end is hinged to the lifting connecting block. The lifting vertical rod is slidably connected to the connecting bracket. The upper end of the lifting vertical rod is fixed on the lifting connecting block, and the lower end is fixed on the needle plate. The lower end of the first guide post is fixed on the connecting bracket, and the upper end is slidably connected to the lifting connecting block. The lifting balance assembly includes a second connecting handle, a lifting counterweight, and a second guide post. The upper end of the second connecting handle is hinged to the second bent handle part, and the lower end is hinged to the lifting counterweight. The lower end of the second guide post is fixed on the connecting bracket, and the upper end is slidably connected to the lifting counterweight.
[0008] Further description of the present utility model: The needle plate includes a lifting bracket, a first locking component, a second locking component, and a lifting bottom plate. The lifting bracket is fixed to the lower end of the lifting vertical rod. The first locking component and the second locking component are respectively fixed on the front and rear sides of the lifting bracket. The lifting bottom plate is fixed below the lifting bracket through the first locking component and the second locking component. Multiple groups of long needles are fixedly arranged on the lower end surface of the lifting bottom plate.
[0009] Further description of the present utility model: The cotton web clamping mechanism includes an upper drive component, a lower drive component, an upper clamping plate, and a lower clamping plate. The upper drive component and the lower drive component are both fixed on the lower side of the seventh machine frame. The upper clamping plate and the lower clamping plate are respectively fixed on the power output ends of the upper drive component and the lower drive component. The upper clamping plate is located above the lower clamping plate and below the lifting bottom plate. Multiple groups of needle punching through holes are provided on both the upper clamping plate and the lower clamping plate.
[0010] The beneficial effects of the present utility model are as follows: In the pre-punching machine, the cotton web is conveyed forward from the cotton web feeding mechanism, and after passing through the cotton web clamping mechanism, it is continuously conveyed forward by the cotton web discharging mechanism. When it is necessary to punch the cotton web, the cotton web clamping mechanism clamps the cotton web, and the seventh rotation driving component rotates the driving crank. The first bent handle part and the second bent handle part are not on the rotation axis of the straight handle part. When the straight handle part rotates self, the first bent handle part and the second bent handle part rotate around the straight handle part. The first bent handle part drives the lifting connecting block to make reciprocating lifting motion on the first guide post through the first connecting handle, so as to drive the needle plate to make reciprocating lifting motion through the lifting vertical rod to punch the cotton web. The second bent handle part drives the lifting counterweight block to make reciprocating lifting motion on the second guide post through the second connecting handle. The lifting actions of the lifting counterweight block and the lifting connecting block are just opposite, so as to partially offset the pressure caused by the inertial motion of the lifting connecting block and the needle plate during the lifting process on the driving crank, making the driving crank not easily deformed, running more stably, and the service life of the equipment is also longer. Description of the Drawings
[0011] Figure 1 is the overall structure diagram of the present utility model;
[0012] Figure 2 is the structure diagram of the pre-punching machine in the present utility model (where part of the seventh frame is hidden);
[0013] Figure 3 is Figure 2 the partial enlarged view at position D in;
[0014] Description of the Reference Numerals:
[0015] 71. Pre-punching machine; 711. Seventh frame; 712. Connecting bracket; 713. Cotton web clamping mechanism; 7131. Upper driving component; 7132. Lower driving component; 7133. Upper clamping plate; 7134. Lower clamping plate; 714. Cotton web feeding mechanism; 715. Cotton web discharging mechanism; 716. Punching mechanism; 7161. Seventh rotation driving component; 7162. Rotating bracket; 7163. Driving crank; 71631. First bent handle part; 71632. Second bent handle part; 71633. Straight handle part; 7164. Lifting driving component; 71641. First connecting handle; 71642. Lifting connecting block; 71643. First guide post; 71644. Lifting vertical rod; 7165. Lifting balance component; 71651. Second connecting handle; 71652. Lifting counterweight block; 71653. Second guide post; 7166. Needle plate; 72. Tension adjusting frame; 73. Secondary punching machine. Detailed Embodiment
[0016] The present utility model will be further described below with reference to the drawings:
[0017] As Figures 1 to 3As shown in the figure, a needling machine with a long service life includes a pre-needling machine 71, a tension adjusting frame 72, and a secondary needling machine 73 arranged in sequence from back to front. The pre-needling machine 71 includes a seventh frame 711, a connecting bracket 712, a cotton web clamping mechanism 713, a cotton web feeding mechanism 714, a cotton web discharging mechanism 715, and a needling mechanism 716. The connecting bracket 712 is fixed in the middle of the seventh frame 711. The cotton web clamping mechanism 713 is fixed on the seventh frame 711 and corresponds to the lower side of the connecting bracket 712. The cotton web feeding mechanism 714 is fixed on the seventh frame 711 and corresponds to the rear side of the cotton web clamping mechanism 713. The cotton web discharging mechanism 715 is fixed on the seventh frame 711 and corresponds to the front side of the cotton web clamping mechanism 713;
[0018] The needling mechanism 716 includes a seventh rotation driving assembly 7161, a rotation bracket 7162, a driving crank 7163, a lifting driving assembly 7164, a lifting balance assembly 7165, and a needle plate 7166. The seventh rotation driving assembly 7161 is fixed on the seventh frame 711. Multiple groups of rotation brackets 7162 are arranged and fixed on the upper side of the seventh frame 711. The driving crank 7163 is provided with multiple groups of first bent handle parts 71631, second bent handle parts 71632, and a straight handle part 71633. The first bent handle part 71631 and the second bent handle part 71632 are paired and have opposite bending directions. The straight handle part 71633 is rotatably installed on the seventh frame 711. The seventh rotation driving assembly 7161 is drivingly connected to the end of the driving crank 7163. The lifting driving assembly 7164 includes a first connecting handle 71641, a lifting connecting block 71642, a first guide post 71643, and a lifting vertical rod 71644. The upper end of the first connecting handle 71641 is hinged to the first bent handle part 71631, and the lower end is hinged to the lifting connecting block 71642. The lifting vertical rod 71644 is slidably connected to the connecting bracket 712. The upper end of the lifting vertical rod 71644 is fixed on the lifting connecting block 71642, and the lower end is fixed on the needle plate 7166. The lower end of the first guide post 71643 is fixed on the connecting bracket 712, and the upper end is slidably connected to the lifting connecting block 71642. The lifting balance assembly 7165 includes a second connecting handle 71651, a lifting counterweight 71652, and a second guide post 71653. The upper end of the second connecting handle 71651 is hinged to the second bent handle part 71632, and the lower end is hinged to the lifting counterweight 71652. The lower end of the second guide post 71653 is fixed on the connecting bracket 712, and the upper end is slidably connected to the lifting counterweight 71652.
[0019] The multi-layer stacked cotton webs are first needled by the pre-needling machine 71 to make the cotton webs hook and entangle with each other. Then, after the tension is adjusted by the tension adjusting frame 72, they are continuously conveyed into the secondary needling machine 73 for needling again, so that the cotton webs are more firmly combined, which is beneficial to preparing various sanitary fabrics from the cotton webs.
[0020] In the pre - needling machine 71, the cotton web is fed forward from the cotton web feeding mechanism 714. After passing through the cotton web clamping mechanism 713, it is continuously fed forward by the cotton web discharging mechanism 715. When it is necessary to needle the cotton web, the cotton web clamping mechanism 713 clamps the cotton web. The seventh rotary drive assembly 7161 rotates the drive crank 7163. The first bent handle part 71631 and the second bent handle part 71632 are not on the rotation axis of the straight handle part 71633. When the straight handle part 71633 rotates on its own axis, the first bent handle part 71631 and the second bent handle part 71632 rotate around the straight handle part 71633. The first bent handle part 71631 drives the lifting connection block 71642 to make reciprocating lifting movements on the first guide post 71643 through the first connecting handle 71641. Thus, the needle plate 7166 is driven to make reciprocating lifting movements through the lifting vertical rod 71644 to needle the cotton web. The second bent handle part 71632 drives the lifting counterweight block 71652 to make reciprocating lifting movements on the second guide post 71653 through the second connecting handle 71651. The lifting movements of the lifting counterweight block 71652 and the lifting connection block 71642 are just opposite, thereby partially offsetting the pressure caused by the inertial movement of the lifting connection block 71642 and the needle plate 7166 during the lifting process on the drive crank 7163, making the drive crank 7163 not easily deformed, running more stably, and the service life of the equipment is also longer.
[0021] The needle plate 7166 includes a lifting bracket, a first locking component, a second locking component, and a lifting bottom plate. The lifting bracket is fixed to the lower end of the lifting vertical rod 71644. The first locking component and the second locking component are respectively fixed on the front and rear sides of the lifting bracket. The lifting bottom plate is fixed below the lifting bracket through the first locking component and the second locking component. Multiple groups of long needles are fixedly arranged on the lower end surface of the lifting bottom plate. Different specifications of lifting bottom plates can be replaced according to the processing requirements of the cotton web.
[0022] The cotton web clamping mechanism 713 includes an upper drive component 7131, a lower drive component 7132, an upper clamping plate 7133, and a lower clamping plate 7134. The upper drive component 7131 and the lower drive component 7132 are both fixed to the lower side of the seventh frame 711. The upper clamping plate 7133 and the lower clamping plate 7134 are respectively fixed to the power output ends of the upper drive component 7131 and the lower drive component 7132. The upper clamping plate 7133 is above the lower clamping plate 7134 and below the lifting bottom plate. Multiple groups of needling through - holes are provided on both the upper clamping plate 7133 and the lower clamping plate 7134.
[0023] The upper drive component 7131 and the lower drive component 7132 respectively drive the upper clamping plate 7133 and the lower clamping plate 7134 to lift and lower, thereby clamping or relaxing the cotton web.
[0024] The above does not impose any limitation on the technical scope of the present utility model. Any modification, equivalent change or modification made to the above embodiments based on the technical essence of the present utility model still falls within the scope of the technical solution of the present utility model.
Claims
1. A needle loom with a long service life, characterized in that: It includes a pre-needling machine, a tension adjustment frame and a secondary needling machine which are arranged in sequence from back to front, the pre-needling machine includes a seventh frame, a connecting bracket, a cotton net clamping mechanism, a cotton net feeding mechanism, a cotton net discharging mechanism and a needling mechanism, the connecting bracket is fixed to the middle of the seventh frame, the cotton net clamping mechanism is fixed to the seventh frame and corresponds to the bottom of the connecting bracket, the cotton net feeding mechanism is fixed to the seventh frame and corresponds to the rear side of the cotton net clamping mechanism, and the cotton net discharging mechanism is fixed to the seventh frame and corresponds to the front side of the cotton net clamping mechanism; The acupuncture mechanism includes a seventh rotary drive assembly, a rotary bracket, a driving crank, a lifting drive assembly, a lifting balance assembly and a needle plate, the seventh rotary drive assembly is fixed to the seventh frame, the rotary bracket is provided with multiple groups and is fixed on the upper side of the seventh frame, the driving crank is provided with multiple groups of first curved handle parts, second curved handle parts and straight handle parts, the first curved handle parts and the second curved handle parts are arranged in pairs and have opposite bending directions, the straight handle parts are rotatably mounted on the seventh frame, the seventh rotary drive assembly is drivingly connected to the end of the driving crank, the lifting drive assembly includes a first connecting handle, a lifting connecting block, a first guide column and A lifting vertical rod, the upper end of the first connecting handle is hinged to the first bent handle part, and the lower end is hinged to the lifting connecting block, the lifting vertical rod is slidably connected to the connecting bracket, the upper end of the lifting vertical rod is fixed on the lifting connecting block, and the lower end is fixed on the needle plate, the lower end of the first guide column is fixed on the connecting bracket, and the upper end is slidably connected to the lifting connecting block, the lifting balance assembly includes a second connecting handle, a lifting counterweight block and a second guide column, the upper end of the second connecting handle is hinged to the second bent handle part, and the lower end is hinged to the lifting counterweight block, the lower end of the second guide column is fixed on the connecting bracket, and the upper end is slidably connected to the lifting counterweight block.
2. A needle loom with a long service life according to claim 1, characterized in that: The needle plate includes a lifting bracket, a first locking component, a second locking component and a lifting base plate, the lifting bracket is fixed to the lower end of the lifting vertical rod, the first locking component and the second locking component are respectively fixed to the front and rear sides of the lifting bracket, the lifting base plate is fixed below the lifting bracket by the first locking component and the second locking component, and a plurality of groups of long needles are fixedly arranged on the lower end surface of the lifting base plate.
3. A needle loom with a long service life according to claim 2, characterized in that: The cotton net clamping mechanism includes an upper driving component, a lower driving component, an upper clamping plate and a lower clamping plate. The upper driving component and the lower driving component are both fixed to the lower side of the seventh frame. The upper clamping plate and the lower clamping plate are respectively fixed to the power output ends of the upper driving component and the lower driving component. The upper clamping plate corresponds to the top of the lower clamping plate and to the bottom of the lifting base plate. The upper clamping plate and the lower clamping plate are both provided with multiple groups of needle-punched through holes.