一种挤吹机中的去废料装置
By designing top and bottom waste removal devices in the extrusion blow molding machine, and utilizing a drive device and guide rod structure, waste material at the top and bottom of stacked barrels can be automatically removed, solving the problems of high labor costs and safety hazards, and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGJIAGANG TIANJIANG PRECISION MOULD MFG CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-17
Smart Images

Figure CN224510384U_ABST
Abstract
Claims
1. A scrap removal device in an extrusion blow molding machine, comprising: A first and second upright mounting plates are arranged opposite to each other. The second upright mounting plate is provided with a top waste removal device on its top. The first upright mounting plate is characterized by having a top waste removal device that cooperates with the top waste removal device. The specific structure of the top waste removal device includes: a top waste removal guide rail on the first upright mounting plate; a top waste removal slider slidably mounted on the top waste removal guide rail; a top waste removal drive device on the first upright mounting plate for driving the top waste removal slider; a drive rod of the top waste removal drive device connected to the top waste removal slider; a top waste removal seat extending beyond the top waste removal slider on the top waste removal slider; a top waste puncture drive device arranged towards the second upright mounting plate on the top waste removal seat; a top waste puncture push plate on the drive rod of the top waste puncture drive device; a puncture needle on the top waste puncture push plate; and a puncture needle avoidance hole corresponding to the puncture needle on the top waste removal device.
2. A waste removal device in an extrusion blow molding machine as defined in claim 1, wherein, The top waste removal seat has puncture guide rods parallel to the drive rods of the top waste puncture drive device on both sides of the drive rod. The top waste puncture push plate has puncture guide holes corresponding to the corresponding puncture guide rods at both ends. The puncture guide rods are movably inserted into the corresponding puncture guide holes on the top waste puncture push plate.
3. A waste removal device in an extrusion blow molding machine as defined in claim 2, wherein: The ends of the two puncture guide rods are connected to guide connecting plates, and the guide connecting plates are provided with puncture needle guide holes corresponding to the puncture needles.
4. A waste removal device in an extrusion blow molding machine as defined in claim 1, wherein, The specific structure of the top waste removal device includes: a top waste removal seat mounted on a second vertical mounting plate; a top waste removal drive device mounted on the outer side of the top waste removal seat facing the first vertical mounting plate; a top waste removal frame slidably mounted on the inner side of the top waste removal seat; a drive rod of the top waste removal drive device connected to the top waste removal frame; a top waste removal switching shaft movably mounted on the top waste removal frame; a flat cutting tool and a digging tool mounted on the top waste removal switching shaft; a needle avoidance hole opened on the flat cutting tool; a gear rack box mounted on one side of the top waste removal frame; a switching rack slidably mounted in the gear rack box, the rack's forward and backward direction being consistent with the forward and backward direction of the drive rod of the top waste removal drive device; a switching rack drive device for driving the switching rack forward and backward on the gear rack box; and a corresponding end of the top waste removal switching shaft extending out of the top waste removal frame and mounted on a switching gear meshing with the switching rack.
5. A waste removal device in an extrusion blow molding machine as defined in claim 4, wherein, The gear rack box has rack guide blocks on both sides of the switching rack, so that the switching rack is bound in the guide groove formed by the rack guide blocks on both sides.
6. A scrap removal device in an extrusion blow molding machine as defined in claim 4, wherein, The specific configuration of the top waste removal frame is as follows: at least one top waste removal guide rod is provided on both sides of the drive rod of the top waste removal drive device on the top waste removal frame. All the top waste removal guide rods are parallel to each other. The top waste removal seat is provided with top waste removal guide holes that correspond one-to-one with the top waste removal guide rods. The top waste removal guide rods are slidably disposed in the corresponding top waste removal guide holes on the top waste removal seat.
7. A waste removal device in an extrusion blow moulding machine as claimed in claim 6, characterised in that, At least one pair of top waste removal guide rods are respectively provided on both sides of the drive rod of the top waste removal drive device on the top waste removal frame.
8. A scrap removal device in an extrusion blow molding machine as defined in claim 1, wherein, The first and second upright mounting plates are equipped with bottom waste removal devices at their bottoms.
9. A waste removal device in an extrusion blow moulding machine as claimed in claim 8, characterised in that, The specific structure of the bottom waste removal device includes: a first bottom waste removal mounting plate disposed on a first vertical mounting plate, the lower part of which extends beyond the first vertical mounting plate; and a second bottom waste removal mounting plate disposed on a second vertical mounting plate, the lower part of which extends beyond the second vertical mounting plate. A first waste removal guide frame is movably disposed on the first bottom waste removal mounting plate toward the second bottom waste removal mounting plate, and a second waste removal guide frame is movably disposed on the second bottom waste removal mounting plate toward the first bottom waste removal mounting plate. A bottom waste removal driving device is disposed on the second bottom waste removal mounting plate, and the driving rod of the bottom waste removal driving device is connected to the second waste removal guide frame. The inner ends of the first waste removal guide frame and the second waste removal guide frame are respectively provided with mutually cooperating bottom waste removal cutters. An elastic reset component is disposed between the first waste removal guide frame and the bottom waste removal cutter mounted on the first waste removal guide frame.
10. A scrap removal device in an extrusion blow molding machine as defined in claim 9, wherein, The elastic reset assembly includes two reset springs. The first waste removal guide frame includes a pair of horizontally arranged passive slide rods. The pair of passive slide rods are parallel to each other and movably pass through the first bottom waste removal mounting plate. The outer ends of the pair of passive slide rods are connected by a passive connecting plate, that is, the two ends of the passive connecting plate are connected to the outer ends of the pair of passive slide rods one-to-one. Each pair of passive slide rods has a reset spring sleeved on its inner side. The corresponding bottom waste removal cutter is located at the inner end of the pair of passive slide rods, that is, the two ends of the corresponding bottom waste removal cutter are connected to the inner end of the pair of passive slide rods. The ends are connected one-to-one; the second waste removal guide frame includes: a pair of horizontally arranged active slide rods, which are parallel to each other and movably pass through the second bottom waste removal mounting plate. The outer ends of the pair of active slide rods are connected through an active connecting plate, that is: the two ends of the active connecting plate are connected one-to-one with the outer ends of the pair of active slide rods. The corresponding bottom waste removal cutter is set at the inner end of the pair of active slide rods, that is: the two ends of the corresponding bottom waste removal cutter are connected one-to-one with the inner end of the pair of passive slide rods. The drive rod of the bottom waste removal driving device is connected to the middle of the active connecting plate.