Extruder wire tensioner

Abstract

The utility model discloses an extruder wire rod tensioner belongs to wire rod before the traction tensioner of volume, include: multiple sets of double guide rod and multiple sets of wire rod steering tension pulley group, and tension pulley group and double guide rod one to one correspondence installation, and the height difference is formed between adjacent tension pulley group to stretch tension to wire rod, tension adjusting assembly, be located between multiple sets of double guide rod, be used for adjusting the height difference of tension pulley group to adjust the tension that wire rod suffers. The utility model discloses through setting up multiple sets of double guide rod, tension assembly and tension adjusting assembly, makes tension assembly form traction tension, in the wire rod winding process, when needing to adjust wire rod traction tension, can change tension adjusting assembly self load, exert different pressure to the balance rope, and force variation is transmitted to both sides tension pulley frame through the rope guide piece, makes the traction tension that tension pulley frame forms to wire rod change along with, and then realizes the adjustment to wire rod winding tension state.

Description

Technical Field

[0001] This utility model relates to a tensioning device for wire before winding, and more particularly to a wire tensioning device for an extruder. Background Technology

[0002] After the masterbatch is extruded into wires and plastic strips, it needs to be wound up by a take-up reel. The thickness of the extruded strip varies and the extrusion speed fluctuates, so the extrusion speed is not fixed. Moreover, the take-up reel gets bigger and bigger as it winds, which leads to an increasingly faster take-up speed. This faster and faster take-up speed causes the wire to thin, vibrate, or even break. Therefore, a tensioning wheel set needs to be installed between the extruder and the take-up reel.

[0003] The tension roller frame is used for speed buffering, preventing wire breakage, and stabilizing traction. The tension roller frame absorbs the speed difference of wire winding by swinging up and down and floating.

[0004] The weight of the tensioner is the main factor affecting the tension of the traction wire. When the tension is too high, the wire is prone to thinning, turning white when stretched, having high internal stress, and breaking easily. When the tension is too low, the wire becomes loose, sags, and deviates, affecting the winding of the wire.

[0005] Therefore, it is necessary to improve the adjustment method of the tensioner pulley traction force to achieve a more convenient and quick change of the tensioner pulley traction force. Utility Model Content

[0006] Purpose of the utility model: The purpose of this utility model is to provide a simple extruder wire tensioning device for adjusting traction force.

[0007] Technical solution: The extruder wire tensioning device of this utility model includes a base, on which are provided:

[0008] The tensioning assembly includes: multiple sets of double guide rods and multiple sets of tensioning wheel sets for wire deflection. The tensioning wheel sets are installed one-to-one with the double guide rods, and a height difference is formed between adjacent tensioning wheel sets to stretch and tension the wire.

[0009] The tension adjustment assembly, located between multiple sets of double guide rods, is used to adjust the height difference of the tensioning wheel assembly to adjust the tension on the wire.

[0010] The double guide rods are fixedly installed on the base; multiple sets of double guide rods are arranged in sequence along the wire conveying direction as inlet rod, tension rod and outlet rod; tension wheel sets are slidably connected to the inlet rod and outlet rod, tension wheel sets are fixedly installed on the tension rod, and the tension adjustment component adjusts the height of the tension wheel sets on the inlet rod and outlet rod;

[0011] The tension adjustment assembly includes: a counterweight, tension rope guide pulleys located at both ends of the counterweight, and a balance rope. The balance rope is fixedly connected to the tension pulleys on the inlet rod and outlet rod respectively through the tension rope guide pulleys. The balance rope is located at the bottom of the counterweight to adjust the height of the tension pulleys on the inlet rod and outlet rod.

[0012] Furthermore, the tensioning device includes a tensioning wheel assembly comprising: a cantilever, a sliding sleeve, and rotating wheels located at both ends of the cantilever for guiding and conveying the wire. The sliding sleeve is fixedly mounted on the cantilever and is slidably connected to the double guide rods.

[0013] Furthermore, the tensioning device has evenly spaced pin holes on its two guide rods.

[0014] Furthermore, the tensioning device includes a counterweight tank and a sliding sleeve. The counterweight tank contains a counterweight body, and the bottom of the counterweight tank has a limiting groove for limiting the balance rope. The sliding sleeve is slidably connected to the tensioning rod, and the sliding sleeve is fixedly installed on both sides of the counterweight tank.

[0015] Furthermore, the tension rope guide wheel assembly of the tensioning device is fixedly installed above the inlet rod and the outlet rod, and the tension rope guide wheel assembly includes a wheel axle, a pulley and a fixed sleeve. The fixed sleeve is fixedly connected to the wheel axle, the pulley is rotatably installed on the wheel axle, and the fixed sleeve is fixedly connected to the inlet rod and the outlet rod.

[0016] Beneficial effects: Compared with the prior art, the advantages of this utility model are that the tensioning device sets multiple sets of double guide rods on the base, and installs tensioning components and tension adjustment components on the multiple sets of double guide rods respectively, so that the tensioning components form a traction force; during the wire winding process, when it is necessary to adjust the traction force of the wire, the load of the tension adjustment component itself can be changed to apply different pressures to the balance rope, and the force change is transmitted to the tensioning wheel frame on both sides through the rope guide, so that the traction force formed by the tensioning wheel frame on the wire changes accordingly, thereby realizing the adjustment of the wire winding tension state.

[0017] Furthermore, this tensioning device movably mounts a counterweight on the tensioning rod and fills the counterweight body inside the counterweight. By changing the amount of counterweight body inside the counterweight, the load is adjusted, making the adjustment of traction force directly a process of adjusting the weight of the counterweight itself. Compared with existing tensioning devices where the traction force adjustment operation is not convenient and the adjustment process is not quick, this utility model, focusing on the traction force adjustment needs during the wire winding process, adopts a more convenient load change method to complete the tension adjustment, thereby making the wire tension adjustment between the extruder and the winding equipment more convenient and faster. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of the extruder wire tensioning device of this utility model;

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

[0020] Figure 3 This is a schematic diagram of the counterweight structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the tension rope guide wheel assembly structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the application structure of the extruder wire tensioning device of this utility model. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0024] like Figures 1 to 5 As shown, the extruder wire tensioning device of this utility model is first arranged between the extruder and the winding equipment to adjust the tension of the wire during winding. The device includes a base 101, a tensioning assembly, and a tension adjustment assembly. The tensioning assembly includes multiple sets of double guide rods 102 (three or more sets) and multiple sets of tensioning wheel sets 103 (three or more sets) for wire deflection. This embodiment uses three sets as an example. The tensioning wheel sets 103 are installed one-to-one with the double guide rods 102, and the multiple sets of tensioning wheel sets 103 form a height difference between adjacent sets to stretch and tension the wire. The tension adjustment assembly is used to adjust the tension of the tensioning wheel sets.

[0025] Specifically, the bottom of the double guide rod 102 is fixedly mounted on the base 101 with bolts and nuts. The double guide rod 102 has evenly spaced pin holes 121. Three sets of double guide rods 102 are provided, sequentially defined along the wire conveying direction as the inlet rod 1021, tension rod 1022, and outlet rod 1023. Three sets of tensioning wheel groups 103 are also provided, each corresponding to one of the inlet rod 1021, tension rod 1022, and outlet rod 1023. The inlet rod 1021 and outlet rod 1023 are slidably connected to their respective tensioning wheel groups 103. The tension rod 1022 is fixedly connected to its top tensioning wheel group 103 via pins and pin holes 121. The three tensioning wheel groups 103 are connected by a tension adjustment assembly to ensure a certain height difference (the specific height difference can be adjusted according to the actual application and wire performance differences, and is not specifically limited). Figure 1 As shown, the tensioning wheel assembly on the inlet rod 1021 and outlet rod 1023 is positioned lower than the tensioning wheel assembly on the tensioning rod 1022.

[0026] like Figure 2As shown, the tensioning wheel assembly 103 includes a cantilever 131, a sliding sleeve 132, and a rotating wheel 133. The sliding sleeve 132 is fixedly installed on both sides of the cantilever 131. The tensioning wheel assembly 103 is sleeved on the double guide rod 102 through the sliding sleeve 132, and a through hole is provided on the sliding sleeve 132 to facilitate the insertion of a pin into the pin hole 121 on the double guide rod 102. The two ends of the cantilever 131 are rotatably connected to the rotating wheel 133 through bearings. Through the nesting fit between the sliding sleeve 132 and the double guide rod 102, the tensioning wheel assembly 103 can be installed at the corresponding position of the double guide rod 102. Among them, the tensioning wheel assembly 103 located on the tensioning rod 1022 is fixedly connected to the tensioning rod 1022 through a pin, while the tensioning wheel assemblies 103 located on the inlet rod 1021 and the outlet rod 1023 are kept in a movable installation state to adapt to the force changes during subsequent tension adjustment.

[0027] like Figure 2 and Figure 5 During the wire winding process, the wire contacts and engages with the rotating wheel 133. The rotating wheel 133 guides the wire's running path and forms a corresponding detour route when the wire passes through the tensioning wheel assembly 103. The middle tensioning wheel assembly 103, due to its fixed installation position, mainly limits the intermediate path of the wire during its operation. The tensioning wheel assemblies at both ends, due to their sliding installation, can slide up and down relative to the corresponding inlet rod 1021 and outlet rod 1023 under the force applied by the tension adjustment component, thus changing their position and participating in the establishment and adjustment of the wire's traction force. The cantilever 131 serves as the mounting base for the rotating wheel 133, maintaining the installation relationship between the two rotating wheels 133 and forming an integral installation fit with the double guide rod 102 through the sliding sleeve 132, ensuring the continuity of force transmission during the movement of the tensioning wheel assembly 103. During assembly, the pin hole 121 inside the double guide rod 102 provides a positioning position for the pin installation. After the tensioning wheel assembly 103 is fixed to the upper end of the tensioning rod 1022, it, together with the tensioning wheel assemblies 103 at both ends, forms a guide and tensioning section distributed sequentially along the wire conveying direction. This assembly method avoids the wire from becoming significantly loose or unstable due to excessive direct span between the extruder and the winding equipment, ensuring continuous path adjustment and tension transition as the wire passes through multiple rollers 133. During a typical conveying and winding process, the tensioning wheel assembly not only establishes the wire's travel path but also performs force conversion in conjunction with the tension adjustment components.

[0028] like Figure 1 and Figure 5As shown, the tension adjustment assembly includes a counterweight 106, tension rope guide wheel sets 105 located at both ends of the counterweight 106, and a balance rope 104. The two ends of the balance rope 104 are fixedly connected to the tension wheel sets 103 located on the inlet rod 1021 and the outlet rod 1023, respectively. The counterweight 106 is located above the balance rope 104, so that the load change of the counterweight 106 can first act on the balance rope 104, and then be transmitted to the tension wheel set 103 after the force direction is changed by the tension rope guide wheel sets 105 on both sides. Thus, the tension wheel set 103 forms a force change relationship corresponding to the tension of the wire during operation.

[0029] like Figure 3 As shown, the counterweight 106 includes a counterweight tank 161, a sliding sleeve 162, and a top cover 163. The counterweight tank 161 is filled with a counterweight, preferably sand or a counterweight weight. Sliding sleeves 162 are provided on both sides of the bottom of the counterweight tank 161, and the counterweight tank 161 is movably nested onto the tension rod 1022 via the sliding sleeves 162. A limiting groove 164 is formed at the bottom of the counterweight tank 161, and the balance rope 104 is located at the corresponding position of the limiting groove 164, with the bottom of the counterweight tank 161 pressing against the balance rope 104. The top cover 163 is located on top of the counterweight tank 161 and is used to seal the internal filling space of the counterweight tank 161. Through this arrangement, the weight of the counterweight tank 161 can directly act on the balance rope 104, and the limiting groove 164 limits the balance rope 104, ensuring that the balance rope 104 maintains a relatively stable position during compression.

[0030] like Figure 4 As shown, the tension rope guide wheel assembly 105 includes an axle 151, a pulley 152, and a fixing sleeve 153. The pulley 152 is rotatably mounted on the middle of the axle 151 via a bearing. Fixing sleeves 153 are provided at both ends of the axle 151. The axle 151 is nested onto the inlet rod 1021 and the outlet rod 1023 via the fixing sleeves 153. The fixing sleeves 153 are respectively installed on the inlet rod 1021 and the outlet rod 1023 via pins and pin holes 121. Through this installation relationship, the tension rope guide wheel assembly 105 is fixedly positioned above the inlet rod 1021 and the outlet rod 1023. The balance rope 104 changes direction after passing around the pulley 152 and continues to connect with the tension wheel assembly 103, thus forming a complete force transmission path. The pulley 152 is movably positioned in the middle of the axle 151, enabling it to guide the balance rope 104 when the force on the balance rope changes, reducing the obstruction of the balance rope 104 at turning points.

[0031] Working principle: See Figure 5In use, wire 2 is output from the extrusion end and passes sequentially through the rollers 133 on each tensioning roller group 103 before entering the winding station. During the operation of wire 2, the middle tensioning roller group 103 plays a guiding role in the running path of wire 2, while the tensioning roller groups 103 at both ends generate corresponding traction force on wire 2 under the action of the balance rope 104 and the counterweight 106. When it is necessary to adjust the traction force during the winding process of wire 2, the load of the counterweight 106 is changed, and the compression state of the balance rope 104 changes accordingly. The balance rope 104 further drives the force state of the tensioning roller groups 103 at both ends to change, thereby completing an adjustment process for the winding tension of wire 2 (similarly, the addition or reduction of the counterweight in the counterweight 106, and even the amount added, can be flexibly selected in actual application, and no specific limitation is made in the utility model device). Through the above overall structural cooperation, the entire device can complete the guidance, tensioning, and tension adjustment during the continuous conveying and winding of wire 2.

[0032] When the traction force of wire 2 needs adjustment during the winding process, the overall load of the counterweight tank 161 is changed by altering the amount of sand in the counterweight tank 161. After the load on the counterweight tank 161 changes, the downward pressure of the counterweight tank 161 on the balance rope 104 also changes. The balance rope 104, after its force direction is changed by the pulleys 152 at the tension rope guide wheel sets 105 on both sides, transmits the load change to the tension wheel sets 103 at both ends. Under this force change, the tension wheel sets 103 at both ends change the traction force on the wire 2, thereby maintaining the tension of the wire 2 at a level appropriate to the production status during its subsequent transport to the winding station. Through the coordinated operation of the tension rope guide wheel sets 105, the balance rope 104, and the counterweight 106, the entire device can perform specific adjustment actions based on the application scenario of "easy adjustment of traction force" during the winding process of wire 2, and together with the tension wheel sets 103, forms a complete tension adjustment chain.

Claims

1. A wire tensioning device for an extruder, characterized in that, Includes a base (101), on which are provided: The tensioning assembly includes: multiple sets of double guide rods (102) and multiple sets of tensioning wheel sets (103) for wire deflection. The tensioning wheel sets (103) are installed in a one-to-one correspondence with the double guide rods (102), and a height difference is formed between adjacent tensioning wheel sets (103) to stretch and tension the wire. Tension adjustment assembly, used to adjust the height difference of tension wheel assembly (103) to adjust the tension on the wire; The double guide rods (102) are fixedly installed on the base (101); the multiple sets of double guide rods (102) are arranged in sequence along the wire conveying direction as an inlet rod (1021), a tensioning rod (1022), and an outlet rod (1023); a tensioning wheel assembly (103) is slidably connected to the inlet rod (1021) and the outlet rod (1023), the tensioning wheel assembly (103) is fixedly installed on the tensioning rod (1022), and the tension adjustment component adjusts the height of the tensioning wheel assembly (103) on the inlet rod (1021) and the outlet rod (1023); The tension adjustment assembly includes: a counterweight (106), a tension rope guide wheel assembly (105) located at both ends of the counterweight (106), and a balance rope (104). The balance rope (104) is fixedly connected to the tension wheel assembly (103) on the inlet rod (1021) and outlet rod (1023) respectively through the tension rope guide wheel assembly (105). The balance rope (104) is located at the bottom of the counterweight (106) to adjust the height of the tension wheel assembly (103) on the inlet rod (1021) and outlet rod (1023).

2. The extruder wire tensioning device according to claim 1, characterized in that, The tensioning wheel assembly (103) includes: a cantilever (131), a sliding sleeve (132), and a rotating wheel (133) located at both ends of the cantilever (131) for wire turning and conveying. The sliding sleeve (132) is fixedly installed on the cantilever (131) and is slidably connected to the double guide rod (102).

3. The extruder wire tensioning device according to claim 1, characterized in that, The double guide rod (102) is provided with uniformly spaced pin holes (121).

4. The extruder wire tensioning device according to claim 1, characterized in that, The counterweight (106) includes a counterweight tank (161) and a sliding sleeve (162). The counterweight tank (161) is provided with a counterweight body, and the bottom of the counterweight tank (161) is provided with a limiting groove (164) for limiting the balance rope (104). The sliding sleeve (162) is slidably connected to the tension rod (1022), and the sliding sleeve (162) is fixedly installed on both sides of the counterweight tank (161).

5. The extruder wire tensioning device according to claim 1, characterized in that, The tension rope guide wheel assembly (105) is fixedly installed above the inlet rod (1021) and the outlet rod (1023), and the tension rope guide wheel assembly (105) includes a wheel axle (151), a pulley (152) and a fixing sleeve (153). The fixing sleeve (153) is fixedly connected to the wheel axle (151), the pulley (152) is rotatably installed on the wheel axle (151), and the fixing sleeve (153) is fixedly connected to the inlet rod (1021) and the outlet rod (1023).

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