Cutting and punching tool

Abstract

The utility model discloses a cutting and punching cutter, which relates to the technical field, and comprises a cutter body and a discharging part, one end of the cutter body is provided with a blade, a negative pressure cavity is arranged in the cutter body, and the negative pressure cavity is communicated with the blade. The discharging piece is connected with the cavity wall of the negative pressure cavity and can abut against the waste materials when the cutting edge cuts the plastic appliance so as to drive the waste materials to fall off. And a through hole is formed in the unloading part, communicates with the negative pressure cavity and can adsorb waste cut off by the cutting edge when negative pressure is formed in the negative pressure cavity. In the process that the cutter body cuts the plastic appliance, the discharging piece can abut against waste materials of the plastic appliance, the waste materials can rapidly fall off, and therefore the cutting efficiency is improved. In addition, when the discharging piece abuts against the waste materials, the through holes in the discharging piece can adsorb the waste materials, the waste materials can be adsorbed by the discharging piece when being separated from the plastic appliance, then the cutter body is moved to drive the waste materials to move to a recycling area so as to recycle the waste materials, and the situation that the waste materials are discarded at will and pollute the environment can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of blow molding machines, and particularly relates to a cutting and punching tool. Background Art

[0002] A blow molding machine is a plastic processing machine. After spraying liquid plastic, it uses the wind force blown out by the machine to blow the plastic body onto a mold cavity with a certain shape, thereby making plastic products. The open ends of some plastic products need to be punched, so after the plastic products are blow molded, a tool is required to cut them.

[0003] The prior art with the publication number CN206598522U discloses a plastic utensil blow molding device, including: an extruder; a blow molding machine; a mold, which includes a front template, a rear template and a first cylinder. The opposite sides of the front template and the rear template are respectively provided with a front mold cavity and a rear mold cavity. The front mold cavity and the rear mold cavity enclose a mold cavity that cooperates with the extruder; a clamping mechanism, which includes a front clamping member and a rear clamping member; a translation mechanism, which includes a guide rail, a sliding seat and a second cylinder; and a cutting mechanism, which includes a mounting bracket, a rotating bracket, a stepping motor, a cutting blade and a fourth cylinder. By arranging the cutting mechanism and the extruder on both sides of the blow molding machine respectively, and through the cooperation of the mold, the clamping mechanism and the translation mechanism, the utility model realizes sequential extrusion, blow molding and container mouth cutting, which greatly improves the production efficiency of plastic utensils. At the same time, the cutting mechanism is used to realize the automatic cutting of plastic utensils, reducing the labor intensity of the human body and improving the cutting efficiency.

[0004] However, this prior art still has defects. For example, it lacks a structure for recycling waste materials. After the plastic utensils are cut with the cutting blade, the waste materials separated from the plastic utensils are scattered randomly, which is not only difficult to clean, but also pollutes the environment. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies, and propose a cutting and punching tool to solve the technical problems in the prior art that the plastic utensil blow molding device lacks a structure for recycling waste materials. After the plastic utensils are cut with the cutting blade, the waste materials separated from the plastic utensils are scattered randomly, which is not only difficult to clean, but also pollutes the environment.

[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a cutting and punching tool, including:

[0008] A tool body, one end of which has a cutting edge. A negative pressure cavity is arranged in the tool body, and the negative pressure cavity communicates with the cutting edge; and

[0009] The discharging member is connected to the chamber wall of the negative pressure chamber. The discharging member can press against the waste material when the blade cuts the plastic appliance, so as to drive the waste material to fall off. The discharging member is provided with a through hole, and the through hole communicates with the negative pressure chamber and can adsorb the waste material cut off by the blade when negative pressure is formed in the negative pressure chamber.

[0010] In some embodiments, the blade is bevel-shaped, and in the direction from one end of the tool body with the blade to the other end, the width of the blade increases.

[0011] In some embodiments, the cutting and punching tool further includes an elastic member. The elastic member is connected to the tool body and the discharging member. The discharging member is slidably connected to the chamber wall of the negative pressure chamber and can drive the elastic member to accumulate elastic force when pressing against the waste material. The elastic member can drive the waste material to fall off through the elastic force.

[0012] In some embodiments, the discharging member includes a pressing block and two sliding blocks. The pressing block is provided with the through hole, and the two sliding blocks are respectively arranged at both ends of the pressing block. Sliding grooves are respectively formed on both side chamber walls of the negative pressure chamber, and the two sliding blocks are respectively slidably connected to the two sliding grooves.

[0013] In some embodiments, the cutting and punching tool further includes a fixing member. The fixing member is connected to the chamber wall of the negative pressure chamber. Two ends of the elastic member are respectively connected to the fixing member and the pressing block, and the pressing block can drive the elastic member to accumulate elastic force when pressing against the waste material.

[0014] In some embodiments, the elastic member is located in the sliding groove, one end of the elastic member is connected to the sliding block, and the other end is connected to the bottom of the sliding groove.

[0015] In some embodiments, both sides of the fixing member have notches, the chamber wall of the negative pressure chamber is cylindrical, and the part where the fixing member is connected to the chamber wall of the negative pressure chamber is arc-shaped.

[0016] In some embodiments, a convex block is arranged on the side of the pressing block facing the blade, and the blade can drive the convex block to press against the waste material when cutting the plastic appliance.

[0017] In some embodiments, a negative pressure hole is formed at the end of the tool body far from the blade. The negative pressure hole communicates with the negative pressure chamber and can drive the negative pressure chamber to be in a negative pressure state when connected to a negative pressure source.

[0018] In some embodiments, a stud is arranged at the end of the tool body far from the blade. The stud is used to detachably connect to a three-dimensional driving mechanism through a screw, and the tool body can move along a three-dimensional space driven by the three-dimensional driving mechanism.

[0019] Compared with the prior art, the cutting and punching tool provided by the present utility model includes a tool body with a cutting edge. When the tool body moves, it can drive the cutting edge to cut a plastic appliance to form an opening in the plastic appliance. During the process of cutting the plastic appliance, the unloading member can press against the waste material of the plastic appliance, so that the waste material can fall off the plastic appliance more quickly, thereby improving the cutting efficiency. In addition, during the cutting process, the negative pressure cavity can be connected to a negative pressure source to form a negative pressure state in the negative pressure cavity. While the unloading member presses against the waste material, the through holes on it can adsorb the waste material. When the waste material detaches from the plastic appliance, it can be adsorbed by the unloading member, and then the tool body is moved to drive the waste material to move to the recovery area for recycling the waste material, which can avoid the waste material being discarded randomly and polluting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a cutting and punching tool according to an embodiment of the present utility model;

[0021] Figure 2 is the present utility model Figure 1 a three-dimensional schematic diagram of the illustrated embodiment;

[0022] Figure 3 is a schematic structural diagram of a cutting and punching tool according to another embodiment of the present utility model;

[0023] Figure 4 is a schematic structural diagram of a fixing member provided by an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] In order to solve the technical problem in the prior art that the plastic appliance blow molding device lacks a structure for recycling waste materials, after the plastic appliance is cut by a cutting blade, the waste materials separated from the plastic appliance are scattered randomly, which is not only difficult to clean, but also pollutes the environment. The present utility model provides a cutting and punching tool, which can improve the efficiency of cutting and punching, and can also recycle the waste materials separated from the plastic appliance, avoiding the difficulties in cleaning the waste materials later and polluting the environment.

[0026] It should be noted that the cutting and punching tool described in the present utility model is used for but not limited to blow molding machines, etc. For the sake of convenience of description, in the present utility model, only the case where the cutting and punching tool is applied to a blow molding machine is taken as an example for illustration, and the principle of the cutting and punching tool applied to other types of equipment is substantially the same as that applied to a blow molding machine, and will not be elaborated one by one here. After the plastic utensil is blow molded by the blow molding machine, it is necessary to open the end of the plastic utensil in the form of punching so that the plastic utensil can be used normally.

[0027] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of the cutting and punching tool in an embodiment of the present utility model. The cutting and punching tool 100 includes a tool body 1 and a discharging member 2. One end of the tool body 1 has a cutting edge 11, and the cutting edge 11 can cut the plastic utensil when inserted into the plastic utensil to punch the plastic utensil. A negative pressure chamber 12 is provided in the tool body 1, and the negative pressure chamber 12 communicates with the cutting edge 11, or it can be understood that the negative pressure chamber 12 penetrates toward the end of the tool body 1 with the cutting edge 11, so that when the cutting edge 11 cuts the plastic utensil, the waste material falling off from the plastic utensil can enter the negative pressure chamber 12.

[0028] The discharging member 2 is connected to the chamber wall of the negative pressure chamber 12, which can be a fixed connection or a sliding connection. The discharging member 2 can press against the waste material of the plastic utensil when the cutting edge 11 cuts the plastic utensil to drive the waste material to fall off quickly and improve the punching efficiency. The discharging member 2 is provided with a through hole 21, and the through hole 21 communicates with the negative pressure chamber 12 and can adsorb the waste material cut by the cutting edge 11 when a negative pressure is formed in the negative pressure chamber 12, and transfer the waste material to the recovery area to avoid the random scattering of the waste material and the difficulty of later cleaning.

[0029] In one embodiment, please refer to Figure 2 , the cutting edge 11 is bevel-shaped, and in the direction from the end of the tool body 1 with the cutting edge 11 to the other end, the width of the cutting edge 11 increases. It can be understood that the cutting edge 11 is oval-shaped. This shape of the cutting edge 11 is easier to penetrate the plastic utensil than a cylindrical cutting edge, thereby improving the cutting efficiency.

[0030] In one embodiment, please refer to Figure 1, the cutting and punching tool 100 further includes an elastic member 3. The elastic member 3 is connected to the tool body 1 and the unloading member 2. The unloading member 2 is slidably connected to the wall of the negative pressure chamber 12 and can drive the elastic member 3 to accumulate elastic force when pressing against the waste material. The elastic member 3 can drive the waste material to fall off through the elastic force. In this embodiment, the deeper the cutting depth of the cutting edge 11 into the plastic appliance, the greater the elastic deformation of the elastic member 3, the greater the acting force of the unloading member 2 on the waste material, and the easier it is to squeeze off the waste material. In addition, under the action of the elastic member 3, the unloading member 2 can generate a certain pre-tightening force on the waste material and will not cause the plastic appliance to be pressed and deformed significantly. During the cutting process of the cutting edge 11, while cutting, it elastically presses through the unloading member 2, which can effectively ensure the integrity of the punching.

[0031] In one embodiment, please refer to Figure 1 , the unloading member 2 includes a pressing block 22 and two sliders 23. The pressing block 22 is provided with a through hole 21. The two sliders 23 are respectively arranged at both ends of the pressing block 22. Sliding grooves 121 are provided on both side walls of the negative pressure chamber 12. The two sliders 23 are respectively slidably connected to the two sliding grooves 121, so that the pressing block 22 is slidably connected to the sliding groove 121 through the sliders 23 on the left and right sides, and the pressing block 22 can reciprocate along the length direction of the sliding groove 121 to press against the elastic member 3 to accumulate elastic force. It should be emphasized that when the pressing block 22 slides towards the cutting edge 11 to the limit position, the pressing block 22 extends out of the outlet of the cutting edge 11, so that during the process of the cutting edge 11 cutting the plastic appliance, the pressing block 22 can press against the waste material of the plastic appliance. Please refer to Figure 3 , in other embodiments, a convex block 221 can also be provided on the side of the pressing block 22 facing the cutting edge 11. When the cutting edge 11 cuts the plastic appliance, it can drive the convex block 221 to press against the waste material. The convex block 221 can increase the process of pressing against the waste material, so that the waste material can fall off faster.

[0032] In one embodiment, please refer to Figure 1, the cutting and punching tool 100 further includes a fixing member 4. The fixing member 4 is connected to the wall of the negative pressure chamber 12. The two ends of the elastic member 3 are respectively connected to the fixing member 4 and the pressing block 22. The pressing block 22 can drive the elastic member 3 to accumulate elastic force when pressing against the waste material. In this embodiment, the tool body 1 is made of a metal material, such as stainless steel. The fixing member 4 can be fixed to the wall of the negative pressure chamber 12 by welding. The fixing member 4 is mainly used to provide a connection position for the elastic member 3, so that the elastic member 3 can be located in the negative pressure chamber 12 and connected to the pressing block 22. In other embodiments, the elastic member 3 can also be arranged in the chute 121. One end of the elastic member 3 is connected to the slider 23, and the other end is connected to the bottom of the chute 121. When the pressing block 22 slides away from the cutting edge 11, the slider 23 drives the elastic member 3 to accumulate elastic force; when the pressing block 22 disengages from the waste material, the elastic member 3 releases the elastic force to drive the pressing block 22 to reset. Compared with the previous embodiment, in this embodiment, the elastic member 3 is arranged in the chute 121, which does not additionally occupy the space of the negative pressure chamber 12, and the fixing member 4 can also be not provided, saving costs.

[0033] In one embodiment, please refer to Figure 4 , both sides of the fixing member 4 have notches 41. The wall of the negative pressure chamber 12 is cylindrical, and the part of the fixing member 4 connected to the wall of the negative pressure chamber 12 is arc-shaped, so that the fixing member 4 can be closely attached to the wall of the negative pressure chamber 12 for fixing. The notches 41 communicate the spaces at the upper and lower parts of the fixing member 4. A negative pressure hole 13 is opened at the end of the tool body 1 away from the cutting edge 11. The negative pressure hole 13 communicates with the negative pressure chamber 12 and can drive the negative pressure chamber 12 to be in a negative pressure state when connecting to a negative pressure source. When the negative pressure source is powered on to evacuate the negative pressure chamber 12 through the negative pressure hole 13, the notches 41 will not affect the evacuation of the entire negative pressure chamber 12, so that the through hole 21 on the pressing block 22 can adsorb the waste material.

[0034] In one embodiment, please refer to Figure 1 , a stud 14 is provided at the end of the tool body 1 away from the cutting edge 11. The stud 14 is used to detachably connect to a three-dimensional driving mechanism (not shown in the figure) through a screw. The tool body 1 can move along a three-dimensional space under the drive of the three-dimensional driving mechanism, so as to cut and punch plastic utensils. By detachably connecting the stud 14 to the three-dimensional driving mechanism, it is convenient to replace the tool in the later stage.

[0035] To better understand the present invention, the following combines Figures 1 to 4 to elaborate on the technical solution of the present invention in detail:

[0036] The cutting tool provided by the present utility model can be installed on a three-dimensional drive mechanism. Driven by the three-dimensional drive mechanism, the cutting tool can move flexibly in a three-dimensional space to facilitate cutting and punching of fixed plastic appliances. During the cutting process, the unloading member 2 can press against the waste part on the plastic appliance so that the waste can fall off more quickly, thereby improving the cutting efficiency. In addition, the unloading member 2 has a through hole 21 communicating with the negative pressure cavity 12. When the negative pressure cavity 12 is in a negative pressure state, the through hole 21 can adsorb the fallen waste, and then the three-dimensional drive mechanism is used to transfer the waste to the recovery area, which can prevent the waste from being scattered randomly and polluting the environment.

[0037] The specific embodiments of the present utility model described above do not constitute a limitation on the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. A cutting and punching tool, characterized in that, Comprising: A tool body, one end of which has a cutting edge, and the tool body is provided with a negative pressure chamber; And A discharge member, which is connected to the chamber wall of the negative pressure chamber. The discharge member can press against the waste material when the cutting edge cuts the plastic appliance, so as to drive the waste material to fall off; a through hole is formed in the discharge member, and the through hole communicates with the negative pressure chamber, and can adsorb the waste material cut off by the cutting edge when a negative pressure is formed in the negative pressure chamber.

2. The cutting and punching tool according to claim 1, characterized in that, The cutting edge is bevel-shaped, and in the direction from the end of the tool body with the cutting edge to the other end, the width of the cutting edge increases.

3. The cutting and punching tool according to claim 1, characterized in that, The cutting and punching tool further includes an elastic member, the elastic member connects the tool body and the discharge member, the discharge member is slidably connected to the chamber wall of the negative pressure chamber, and can drive the elastic member to accumulate elastic force when pressing against the waste material, and the elastic member can drive the waste material to fall off through the elastic force.

4. The cutting and punching tool according to claim 3, characterized in that, The discharge member includes a pressing block and two sliders. The pressing block is provided with the through hole. The two sliders are respectively arranged at both ends of the pressing block. Sliding grooves are formed on both sides of the chamber wall of the negative pressure chamber, and the two sliders are respectively slidably connected to the two sliding grooves.

5. The cutting and punching tool according to claim 4, characterized in that, The cutting and punching tool further includes a fixing member, the fixing member is connected to the chamber wall of the negative pressure chamber, and both ends of the elastic member are respectively connected to the fixing member and the pressing block, and the pressing block can drive the elastic member to accumulate elastic force when pressing against the waste material.

6. The cutting and punching tool according to claim 4, characterized in that, The elastic member is located in the sliding groove, one end of the elastic member is connected to the slider, and the other end is connected to the bottom of the sliding groove.

7. The cutting and punching tool according to claim 5, characterized in that, Both sides of the fixing member have notches, the chamber wall of the negative pressure chamber is cylindrical, and the part where the fixing member is connected to the chamber wall of the negative pressure chamber is arc-shaped.

8. The cutting and punching tool according to claim 4, characterized in that, A convex block is arranged on one side of the pressing block facing the cutting edge, and the cutting edge can drive the convex block to press against the waste material when cutting the plastic appliance.

9. The cutting and punching tool according to claim 1, wherein A negative pressure hole is formed at the end of the tool body far from the cutting edge, and the negative pressure hole communicates with the negative pressure chamber, and can drive the negative pressure chamber to be in a negative pressure state when connected to a negative pressure source.

10. The cutting and punching tool according to claim 1, wherein A stud is arranged at the end of the tool body far from the cutting edge, and the stud is used for detachably connecting to a three-dimensional driving mechanism through a screw, and the tool body can move along a three-dimensional space under the drive of the three-dimensional driving mechanism.

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