Scrap edge removing equipment

Abstract

The utility model provides a slitter edge removing device. The slitter edge removing device comprises a fixing plate; the advancing and retreating air cylinder comprises a first cylinder body fixedly installed on the fixing plate and a first air cylinder shaft capable of stretching out and drawing back in the longitudinal direction relative to the first cylinder body, and the first air cylinder shaft defines an axial lead extending in the longitudinal direction; the movable support is fixedly connected to the first air cylinder shaft and can be driven by the first air cylinder shaft to move; the clamping assemblies are oppositely arranged on the two sides of the axis, and each clamping assembly is provided with a fixed clamping block fixedly installed on the movable support, a rotatable plate rotatably installed on the movable support, a movable clamping block fixedly installed on the rotatable plate and a driving part in transmission connection with the rotatable plate; wherein the clamping assembly has a clamping state in which the fixed clamping block is in contact with the movable clamping block and a separation state in which the fixed clamping block is separated from the movable clamping block, and the driving part can drive the rotatable plate to rotate, so that the clamping assembly can be switched back and forth between the clamping state and the separation state.

Description

Technical Field

[0001] The utility model relates to the technical field of blow molding, in particular to a waste edge removing device suitable for removing waste edges of barrel-shaped blow-molded products with a relatively large volume. Background Art

[0002] Blow molding is a widely used technology for manufacturing hollow plastic products. The basic principle of this technology is to heat thermoplastic plastic to a molten state, inject it into a blow mold, and then introduce compressed air into the blow mold to blow it into the desired shape.

[0003] Double-ring chemical drums are a type of larger blow-molded drum specifically designed for storage and transportation in the chemical industry. These drums feature a double-ring structure that provides enhanced sealing and stability, ensuring the liquid inside does not leak or evaporate.

[0004] For blow-molded products, removing scrap edges is a necessary process. For larger barrel-shaped blow-molded products (such as the double-ring chemical barrels mentioned above), existing technologies often use a cylinder to push horizontally to remove the scrap edges. However, this approach requires a large cylinder diameter to provide sufficient output power, which significantly increases the cost of the scrap edge removal equipment. Furthermore, this approach suffers from high operating noise and difficulty collecting the scrap edges. Utility Model Content

[0005] Aiming at the technical problems existing in the technical solution of using cylinder to push horizontally to remove waste edges in the above-mentioned prior art, the purpose of this utility model is to provide a new type of waste edge removal equipment.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste edge removal device, comprising: a fixed plate; an advance and retreat cylinder, comprising a first cylinder body fixedly mounted on the fixed plate and a first cylinder shaft that can be longitudinally extended relative to the first cylinder body, the first cylinder shaft defining an axial centerline extending longitudinally; a movable bracket, fixedly connected to the first cylinder shaft and movable by the first cylinder shaft; and a pair of clamping assemblies, relatively arranged on both sides of the axial centerline, each of the clamping assemblies comprising a fixed clamping block fixedly mounted on the movable bracket, a rotatable plate rotatably mounted on the movable bracket, a movable clamping block fixedly mounted on the rotatable plate, and a driving component that is transmission-connected to the rotatable plate; wherein the clamping assembly has a clamping state in which the fixed clamping block contacts the movable clamping block and a separation state in which the fixed clamping block is separated from the movable clamping block, and the driving component can drive the rotatable plate to rotate so that the clamping assembly can switch back and forth between the clamping state and the separation state.

[0007] In the above technical solution, preferably, the movable bracket includes a laterally extending clamping plate, and the fixed clamping block is fixedly mounted on the clamping plate. Further preferably, the clamping plate is provided with a pair of laterally extending first waist-shaped holes, and the fixed clamping block is secured to the clamping plate via a plurality of fastening bolts passing through the first waist-shaped holes; and the rotatable plate is provided with a second waist-shaped hole, and the movable clamping block is secured to the rotatable plate via a plurality of fastening bolts passing through the second waist-shaped holes.

[0008] In the above technical solution, preferably, the contact surfaces of the fixed clamping block and the dynamic clamping block are configured to be wavy in shape that fit together.

[0009] In the above technical solution, preferably, the waste edge removal device further includes at least one guide rod extending longitudinally, one end portion of the guide rod is fixedly connected to the movable bracket, and the guide rod is slidably supported on the fixed plate.

[0010] In the above preferred solution, further preferably, the guide rod forms a sliding fit with the fixed plate via a copper bearing.

[0011] In the above preferred solution, further preferably, the waste edge removal device is equipped with a pair of guide rods, and the pair of guide rods are arranged opposite to each other along the axis.

[0012] In the above technical solution, preferably, the rotatable plate has a first end and a second end that are far away from each other and a middle part located between the first end and the second end, the middle part of the rotatable plate is rotatably connected to the movable bracket, and the dynamic clamping block is fixedly mounted on the first end; the driving cylinder has a second cylinder body rotatably connected to the movable bracket and a second cylinder shaft that can be extended and retracted relative to the second cylinder body, and the second cylinder shaft is rotatably connected to the second end.

[0013] The waste edge removal device provided by the technical solution of the present invention is used to remove waste edges from large barrel-shaped blow-molded products. First, the air cylinder is moved forward and backward, and the movable bracket and a pair of clamping assemblies are extended into the center of the barrel. Then, the driving component is moved, and the clamping assembly switches from a separated state to a clamped state. During this period, the waste edge of the barrel-shaped blow-molded product is clamped between the fixed clamping block and the movable clamping block. Then, the air cylinder is moved forward and backward again, and the movable bracket and a pair of clamping assemblies return to the initial position and tear off the waste edge of the barrel-shaped blow-molded product. Finally, the driving component is moved again, and the clamping assembly switches from a clamping state to a separated state, and the waste edge falls to a preset collection position. As a result, the waste edge removal device changes the traditional method of beating waste edges to a method of tearing waste edges. The output power required by the air cylinder is greatly reduced, which is conducive to reducing the cost of the waste edge removal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of the waste edge removal equipment provided by the utility model.

[0015] Note in the figure:

[0016] 100. Waste edge removal equipment;

[0017] 1. Fixed plate;

[0018] 2. Movable bracket; 21. Push head; 22. Push plate; 23. Connecting column; 24. Clamping plate; 25. Reinforcement plate;

[0019] 31. Fixed clamping block; 32. Rotatable plate; 33. Dynamic clamping block; 34. Driving cylinder;

[0020] 4. Advance and retraction cylinder; 41. First cylinder body; 42. First cylinder shaft; 43. Guide rod; 44. Copper sleeve bearing;

[0021] Y, axis. DETAILED DESCRIPTION

[0022] In order to explain the technical content, structural features, achieved objectives and effects of this application in detail, the technical solutions in the embodiments of this application will be described below in conjunction with the drawings in the embodiments of this application.

[0023] In this application, spatially relative terms such as "under," "beneath," "under," "down," "over," "up," "above," "higher," "side" (e.g., as in "sidewall"), etc., are used to describe the relationship of one element to another (other) element as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the drawings is turned over, an element described as "under" or "beneath" other elements or features would then be positioned "over" the other elements or features. Thus, the exemplary term "under" can include both above and below orientations. Furthermore, the device can be positioned otherwise (e.g., rotated 90 degrees or at other orientations), and as such, the spatially relative descriptors used herein should be interpreted accordingly.

[0024] like Figure 1 As shown, the present invention provides a waste edge removal device 100, particularly suitable for larger barrel-shaped blow-molded products (such as double-ring chemical barrels). Specifically, the waste edge removal device 100 includes a fixed plate 1, a movable bracket 2 longitudinally movably mounted on the fixed plate 1, a pair of clamping assemblies mounted on the movable bracket 2, and an advance and retreat cylinder 4 for driving the movable bracket 2 longitudinally.

[0025] In the present application, the direction of the axis Y (see below) defined by the cylinder axis of the advance and retreat cylinder 4 is defined as the longitudinal direction; and the direction perpendicular to the longitudinal direction is defined as the transverse direction.

[0026] The fixing plate 1 extends transversely and can be mounted on the ground, a platform or a housing of any equipment, and provides support for other components of the waste edge removal equipment 100 .

[0027] The forward and backward cylinder 4 comprises a first cylinder body 41 fixedly mounted on the fixed plate 1 and a first cylinder shaft 42 that can extend and retract longitudinally relative to the first cylinder body 41. The first cylinder shaft 42 defines a longitudinally extending axis Y. The fixed plate 1 has an opening (not shown) for the cylinder shaft to pass through. The first cylinder body 41 and the movable bracket 2 are longitudinally disposed on either side of the fixed plate 1. The end of the first cylinder shaft 42, distal from the first cylinder body 41, is fixedly connected to the movable bracket 2 and can drive the movable bracket 2 back and forth in the longitudinal direction.

[0028] Furthermore, to prevent the first cylinder shaft 42 from deviating from its predetermined trajectory during movement, this embodiment is further provided with a pair of guide rods 43 to provide guidance for the cylinder shaft. Specifically, the pair of guide rods 43 are disposed opposite each other about the axis Y and are arranged transversely on either side of the forward and backward cylinder 4. Each guide rod 43 extends longitudinally. One end of each guide rod 43 is fixedly connected to the movable bracket 2, and each guide rod 43 is supported on the fixed plate 1 for longitudinal sliding.

[0029] Furthermore, each guide rod 43 forms a sliding fit with the fixed plate 1 through a copper sleeve bearing 44. Copper has good wear resistance, which can greatly reduce the wear and tear of the guide rod 43 when it moves, thereby increasing the service life of the guide rod 43.

[0030] The movable bracket 2 includes a push head 21 fixedly connected to the cylinder shaft, a push plate 22 fixedly connected to the push head 21 and extending laterally, a connecting column 23 fixedly connected to the push plate 22 and extending longitudinally, and a clamping plate 24 fixedly connected to the end of one side of the connecting column 23 away from the push plate 22 and extending laterally.

[0031] Furthermore, a pair of inclined reinforcing plates 25 are provided on the movable bracket 2 , and both side ends of each reinforcing plate 25 are fixedly connected to the push plate 22 and the clamping plate 24 respectively, so as to improve the stability of the movable bracket 2 .

[0032] A pair of clamping assemblies are disposed on the movable support 2, facing each other along the axis Y. Each clamping assembly comprises a fixed clamping block 31 fixedly mounted on the clamping plate 24, a rotatable plate 32 rotatably mounted on the movable support 2, a movable clamping block 33 fixedly mounted on the rotatable plate 32, and a drive component in transmission connection with the rotatable plate 32. Each clamping assembly has a clamping state in which the fixed clamping block 31 and the movable clamping block 33 are in contact, and a disengaged state in which the fixed clamping block 31 and the movable clamping block 33 are separated. The drive component can rotate the rotatable plate 32 to switch the clamping assembly back and forth between the clamping and disengaged states.

[0033] The driving component used in this embodiment is a driving cylinder 34. Specifically, the rotatable plate 32 has a first end and a second end that are separated from each other, and a middle portion located between the first and second rotations. The middle portion of the rotatable plate 32 is rotatably mounted on the movable bracket 2, and the dynamic clamping block 33 is fixedly mounted on the first end of the rotatable plate 32.

[0034] The driving cylinder 34 comprises a second cylinder body (not shown) rotatably connected to the movable bracket 2 and a second cylinder shaft (not shown) that is extendable relative to the second cylinder body. The second cylinder shaft is rotatably connected to the second end of the rotatable plate 32. Thus, by driving the second cylinder shaft, the rotatable plate 32 is driven to rotate about its center, thereby switching the clamping assembly between a clamped state and a released state.

[0035] In other embodiments, a rotating cylinder, an electric motor, an electromagnetic actuator, etc. can also be used as a driving component to replace the driving cylinder in this embodiment, which can achieve the technical effect of driving the rotatable plate to rotate so that the clamping assembly can switch back and forth between the clamping state and the separation state.

[0036] Furthermore, the contact surfaces of the fixed clamping block 31 and the dynamic clamping block 33 are configured to be in a mutually matching wave shape, so as to improve the clamping ability of the two on the scrap edge.

[0037] Furthermore, the clamping plate 24 is formed with a pair of transversely extending first waist-shaped holes (not shown in the figure). The fixed clamping block 31 is secured to the clamping plate 24 via a number of fastening bolts (not shown) passing through the first waist-shaped holes. Each rotatable plate 32 has a second waist-shaped hole (not shown) formed on its first end. The dynamic clamping block 33 is secured to the rotatable plate 32 via a number of fastening bolts (not shown) passing through the second waist-shaped holes. Thus, the waste edge removal apparatus 100 can adjust the positions of the fixed clamping block 31 and the dynamic clamping block 33 based on factors such as the size of the blow-molded product requiring waste edge removal.

[0038] When the scrap edge removal device 100 of this embodiment is used to remove scrap edges from a larger barrel-shaped blow-molded product, the cylinder 4 is first moved forward and backward, causing the movable bracket 2 and a pair of clamping assemblies to extend into the center of the barrel. Subsequently, the driving component is activated, causing the clamping assembly to switch from a separated state to a clamped state, during which the scrap edges of the barrel-shaped blow-molded product are clamped between the fixed clamping block 31 and the movable clamping block 33. Subsequently, the cylinder 4 is moved forward and backward again, causing the movable bracket 2 and a pair of clamping assemblies to return to their initial positions and tear off the scrap edges of the barrel-shaped blow-molded product. Finally, the driving component is activated again, causing the clamping assembly to switch from a clamped state to a separated state, causing the scrap edges to fall to a preset collection location. Thus, the scrap edge removal device 100 changes the traditional scrap edge removal method to a scrap edge tearing method, significantly reducing the output power required by the cylinder 4, which is beneficial for reducing the cost of the scrap edge removal device. Furthermore, the scrap edge removal device 100 has the advantages of low noise and easy scrap edge collection.

[0039] The above embodiments are intended only to illustrate the technical concepts and features of this application. Their purpose is to enable those familiar with the art to understand the content of this application and implement it accordingly. They are not intended to limit the scope of protection of this application. Any equivalent changes or modifications made in accordance with the spirit of this application shall be included in the scope of protection of this application.

Claims

1. A waste edge removal device, characterized in that: include: Fixed plate; The forward and backward cylinder includes a first cylinder body fixedly mounted on the fixed plate and a first cylinder shaft that can be longitudinally extended relative to the first cylinder body, wherein the first cylinder shaft defines an axial centerline extending longitudinally; A movable bracket, fixedly connected to the first cylinder shaft and movable by the first cylinder shaft; as well as a pair of clamping assemblies, oppositely disposed on either side of the axis, each of the clamping assemblies comprising a fixed clamping block fixedly mounted on the movable bracket, a rotatable plate rotatably mounted on the movable bracket, a movable clamping block fixedly mounted on the rotatable plate, and a driving component transmission-connected to the rotatable plate; In which, the clamping assembly has a clamping state in which the fixed clamping block is in contact with the movable clamping block and a separation state in which the fixed clamping block is separated from the movable clamping block. The driving component can drive the rotatable plate to rotate so that the clamping assembly can switch back and forth between the clamping state and the separation state.

2. The waste edge removal device according to claim 1, characterized in that: The movable bracket comprises a clamping plate extending transversely, and the fixed clamping block is fixedly mounted on the clamping plate.

3. The waste edge removal device according to claim 2, characterized in that: A pair of first waist-shaped holes extending laterally are provided on the clamping plate, and the fixed clamping block is locked to the clamping plate via a number of fastening bolts passing through the first waist-shaped holes; a second waist-shaped hole is provided on the rotatable plate, and the dynamic clamping block is locked to the rotatable plate via a number of fastening bolts passing through the second waist-shaped holes.

4. The waste edge removal device according to claim 1, characterized in that: The contact surfaces of the fixed clamping block and the dynamic clamping block are configured to be in mutually fitting wave shapes.

5. The waste edge removal device according to claim 1, characterized in that: It also includes at least one guide rod extending longitudinally, one side end of the guide rod is fixedly connected to the movable bracket, and the guide rod is slidably supported on the fixed plate.

6. The waste edge removal device according to claim 5, characterized in that: The guide rod forms a sliding fit with the fixing plate via a copper bearing.

7. The waste edge removal device according to claim 5, characterized in that: The waste edge removal device is equipped with a pair of guide rods, which are arranged opposite to each other along the axis.

8. The waste edge removal device according to claim 1, characterized in that: The driving component is a driving cylinder.

9. The waste edge removal device according to claim 8, characterized in that: The rotatable plate has a first end and a second end that are far away from each other, and a middle portion located between the first end and the second end. The middle portion of the rotatable plate is rotatably connected to the movable bracket, and the dynamic clamping block is fixedly mounted on the first end. The driving cylinder has a second cylinder body rotatably connected to the movable bracket and a second cylinder shaft that can be extended and retracted relative to the second cylinder body. The second cylinder shaft is rotatably connected to the second end.

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