Scraping jig for injection molding of barrel opening and water opening of glue barrel

Abstract

The scraping jig comprises a jig body, a scraping knife is arranged on the jig body, when the jig body is plugged into the opening of the glue barrel, the blade portion of the scraping knife abuts against the opening of the glue barrel, and when the jig body rotates by a circle along the opening of the glue barrel, the blade portion of the scraping knife rotates around the opening of the glue barrel. And the scraping knife rotates a circle along the outer end face of the glue barrel opening. The glue barrel opening scraping device has the effect of improving the scraping convenience of a water opening of the glue barrel opening.

Description

Technical Field

[0001] The present application relates to the field of rubber barrel production, and in particular to a scraping jig for the spout of an injection-molded rubber barrel. Background Art

[0002] Plastic barrels are light and easy to carry, corrosion-resistant, durable, low-cost and highly plastic. They are suitable for various occasions, such as household storage, industrial raw material storage, agricultural use, chemical transportation, etc., and can meet different needs through different designs and material selections. They are a multifunctional container.

[0003] After the plastic barrel is injection molded, there will be water outlets left at the barrel mouth, which will block part of the barrel mouth diameter and fail to meet the design requirements. Therefore, manual secondary trimming of the barrel mouth is required.

[0004] In actual application, it is usually necessary to manually use a hand-held tool to cut off the residual water outlet at the mouth of the plastic barrel. However, since the tool is relatively sharp and it is difficult for the operator to control the force applied to the mouth of the plastic barrel, the cutting surface is uneven, which greatly reduces the appearance quality of the product. Therefore, further improvement is needed. Utility Model Content

[0005] In order to improve the convenience of scraping the sprue of a plastic barrel, the present application provides a scraping jig for the sprue of a plastic barrel for injection molding.

[0006] The present application provides a scraping fixture for the nozzle of an injection molding plastic barrel, which adopts the following technical solution:

[0007] A scraping jig for the spout of a plastic barrel for injection molding comprises a jig body, on which a scraping knife is arranged. When the jig body is inserted into the spout of the plastic barrel, the blade of the scraping knife abuts against the spout of the plastic barrel. When the jig body rotates one circle along the spout of the plastic barrel, the scraping knife rotates one circle along the outer end surface of the spout of the plastic barrel.

[0008] By adopting the above technical solution, since the jig body can be inserted into the mouth of the rubber barrel, the rotation path of the scraper is limited. When the operator rotates the jig body for one circle, the water outlet on the outer end face of the mouth of the rubber barrel can be scraped, and during the rotation of the scraper, the force applied by the scraper on the mouth of the rubber barrel fluctuates less, so that the cross-section is relatively smooth, which is beneficial to improving the appearance quality of the rubber barrel and plays a positive guiding role in improving the scraping efficiency of the water outlet at the mouth of the rubber barrel.

[0009] Preferably, the jig body includes a limiting portion and a plug-in portion, the scraper is arranged on the limiting portion, and when the plug-in portion is inserted into the mouth of the rubber barrel, the surface of the limiting portion facing the mouth of the rubber barrel abuts against the mouth of the rubber barrel, the scraper is located outside the mouth of the rubber barrel, the diameter of the limiting portion is greater than the diameter of the plug-in portion, and the plug-in portion is transitionally matched with the mouth of the rubber barrel.

[0010] By adopting the above technical scheme, the plug-in part and the mouth of the rubber barrel are transitionally matched, so that the plug-in part can rotate smoothly along the mouth of the rubber barrel, so as to achieve the purpose of limiting the rotation path of the scraper, reduce the shaking of the scraper during the scraping process of the water outlet of the rubber barrel, and make the scraping surface relatively smooth.

[0011] Preferably, an oblique groove is provided along the surface where the limiting portion abuts against the mouth of the rubber barrel to the surface away from the mouth of the rubber barrel, and the scraper is detachably arranged in the oblique groove.

[0012] By adopting the above technical solution, when the scraper is installed on the limiting part by using the inclined groove, the scraper is in an inclined state. At this time, the blade of the scraper is in an inclined state, which is beneficial to reduce the resistance encountered by the scraper in the process of scraping the water outlet, and reduce the probability of damage to the blade of the scraper due to excessive resistance encountered by the scraper.

[0013] Preferably, a fastening bolt is provided on the limiting portion, the thread of the fastening bolt passes through the limiting portion and extends into the inclined groove, and the fastening bolt is used to lock the scraper.

[0014] By adopting the above technical solution, the scraper blade can be taken out along the inclined groove by tightening the bolts, or the scraper blade can be fixed in the inclined groove, which is convenient for replacing or maintaining the scraper blade.

[0015] Preferably, a gripping portion is provided on the surface of the limiting portion away from the surface abutting against the mouth of the rubber barrel.

[0016] By adopting the above technical solution, the operator can rotate the jig body by holding the gripping part, and can use an external power source to drive the gripping part to rotate, thereby driving the jig body to rotate, which is beneficial to reducing the force required by the operator to rotate the scraper.

[0017] Preferably, the plug-in portion is hollow inside.

[0018] By adopting the above technical solution, since the interior of the plug-in part is hollow, it is helpful to reduce the weight of the plug-in part itself, thereby reducing the overall weight of the fixture body, making it easier for operators to hold and operate.

[0019] Preferably, the end of the plug-in portion away from the end connected to the limiting portion is rounded.

[0020] By adopting the above technical solution, since the end surface of the plug-in part is chamfered, it is convenient to accurately and quickly insert the plug-in part into the barrel mouth of the rubber barrel.

[0021] Preferably, a pre-cutting knife is detachably provided on the limiting portion, the pre-cutting knife is arranged in parallel with the scraping knife, and the rotation radius of the blade of the pre-cutting knife is smaller than the rotation radius of the scraping knife.

[0022] By adopting the above technical solution, since the shapes and sizes of the water outlets at the mouth of the rubber barrel are different, part of the water outlets are preliminarily cut off by a pre-cutting knife, and at the same time, the scraper cuts off the water outlet for a second time, which is beneficial to maintain the service life of the scraper and reduce the probability of the scraper being damaged or blunted due to excessive resistance on the scraper.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When the operator rotates the fixture body for one circle, the water outlet on the outer end face of the barrel mouth of the plastic barrel can be scraped off. During the rotation of the scraper, the force applied by the scraper on the barrel mouth of the plastic barrel fluctuates less, so that the cut surface is relatively smooth, which is beneficial to improving the appearance quality of the plastic barrel and plays a positive guiding role in improving the scraping efficiency of the water outlet of the plastic barrel mouth;

[0025] 2. When the scraper is installed on the limiting part by using the inclined groove, the scraper is in an inclined state. At this time, the blade of the scraper is in an inclined state, which is conducive to reducing the resistance encountered by the scraper in the process of scraping the water outlet;

[0026] 3. First, use the pre-cutting knife to preliminarily cut off part of the water outlet, and at the same time, the scraper knife cuts off the water outlet for the second time, which is beneficial to maintain the service life of the scraper knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a scraping fixture for the water outlet of an injection molding plastic barrel in an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the overall structure of a scraping fixture for the water outlet of an injection molding plastic barrel in another embodiment of the present application.

[0029] Explanation of the accompanying drawings: 1. fixture body; 11. limiting part; 12. plug-in part; 2. scraper; 3. inclined groove; 4. fastening bolt; 5. holding part; 51. holding rod; 6. pre-cutting knife. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-2 This application is further described in detail.

[0031] The present application embodiment discloses a scraping fixture for the water outlet of a plastic barrel for injection molding. Figure 1 A scraping jig for the spout of a plastic barrel for injection molding comprises a jig body 1, on which a scraping knife 2 is arranged. When the jig body 1 is inserted into the spout of the plastic barrel, the blade of the scraping knife 2 abuts against the spout of the plastic barrel. When the jig body 1 rotates one circle along the spout of the plastic barrel, the scraping knife 2 rotates one circle along the outer end surface of the spout of the plastic barrel.

[0032] The implementation principle of a scraping jig for the spout of an injection molding plastic barrel according to an embodiment of the present application is as follows: when an operator inserts a jig body 1 into the spout of the plastic barrel, the rotation path of a scraper 2 is limited by the jig body 1, and when the scraper 2 is rotated, the scraper 2 scrapes the spout at the end face of the spout of the plastic barrel, and during the rotation of the scraper 2, the force applied by the scraper 2 to the spout of the plastic barrel fluctuates less, thereby making the cut surface relatively smooth, which is beneficial to improving the appearance quality of the plastic barrel. Compared with the conventional method of using an operator to hold a tool to scrape the spout, the process of the operator scraping the spout of the plastic barrel in the present application is relatively safe, and the above process plays a positive guiding role in improving the convenience of scraping the spout of the plastic barrel.

[0033] Reference Figure 1 The fixture body 1 includes a limiting portion 11 and a plug-in portion 12, and the scraper 2 is arranged on the limiting portion 11. When the plug-in portion 12 is inserted into the mouth of the plastic barrel, the surface of the limiting portion 11 facing the mouth of the plastic barrel abuts against the mouth of the plastic barrel, and the scraper 2 is located outside the mouth of the plastic barrel. The diameter of the limiting portion 11 is greater than the diameter of the plug-in portion 12, and the plug-in portion 12 is transitionally matched with the mouth of the plastic barrel.

[0034] Specifically, the fixture body 1 can be made of metal material. In this embodiment, in order to reduce the weight of the fixture body 1 itself, the fixture body 1 is made of aluminum material through machine tool processing. At the same time, the limiting part 11 and the plug part 12 are integrally formed. The outer contours of the limiting part 11 and the plug part 12 are both cylindrical, thereby forming a T-shaped plug body.

[0035] Furthermore, due to the transition fit between the plug-in portion 12 and the mouth of the rubber barrel, the plug-in portion 12 can smoothly rotate along the mouth of the rubber barrel, so as to achieve the purpose of limiting the rotation path of the scraper 2, reduce the shaking of the scraper 2 during the scraping process of the water outlet of the rubber barrel, and make the scraping surface relatively flat.

[0036] At the same time, an inclined groove 3 is provided from the surface where the limiting portion 11 abuts against the mouth of the rubber barrel to the surface away from the mouth of the rubber barrel, and the scraper 2 is detachably arranged in the inclined groove 3. The inclined groove 3 can be formed by milling or wire cutting, and the width of the inclined groove 3 is greater than the thickness of the scraper 2, so that the scraper 2 is conveniently installed in the inclined groove 3. It should be noted here that in the present embodiment, the angle formed between the inclined groove 3 and the horizontal plane of the limiting portion 11 is set to 60° (angle unit). In the specific implementation process, it can be arbitrarily selected between 30° and 75°. Its function is that when the scraper 2 is installed on the limiting portion 11 by using the inclined groove 3, the scraper 2 is in an inclined state. At this time, the blade of the scraper 2 is in an inclined state, which is conducive to reducing the resistance of the scraper 2 in the process of scraping the water outlet, and reducing the probability of the blade of the scraper 2 being damaged due to excessive resistance borne by the scraper 2.

[0037] Correspondingly, refer to Figure 1 A fastening bolt 4 is provided on the limiting portion 11 , and the fastening bolt 4 threadably penetrates the limiting portion 11 and extends into the inclined groove 3 , and the fastening bolt 4 is used to lock the scraping blade 2 .

[0038] Specifically, in this embodiment, two fastening bolts 4 are provided, and the two fastening bolts 4 are opened toward the inclined groove 3 along the surface of the limiting portion 11 away from the plug-in portion 12, and the spatial position relationship of the two limiting bolts is vertically arranged with the inclined groove 3, so as to achieve threaded cooperation with the limiting portion 11, thereby improving the stability of the scraper 2 when installed in the inclined groove 3.

[0039] Therefore, as the use time of the scraper blade 2 increases, irreversible mechanical wear may occur on the blade of the scraper blade 2 . The scraper blade 2 can be quickly installed in the inclined groove 3 or taken out along the inclined groove 3 by two fastening bolts 4 .

[0040] Reference Figure 1 A gripping portion 5 is provided on the surface of the limiting portion 11 away from the surface abutting against the mouth of the rubber barrel.

[0041] Specifically, the holding portion 5 can be a holding ring or a holding handle. In the present embodiment, in order to facilitate the operator to hold and pick up, the holding portion 5 is configured as a holding rod 51. The outer contour of the holding rod 51 is configured in a T-shape and is fixed to the limiting portion 11 by bolts along the geometric center of the limiting portion 11.

[0042] Therefore, the operator can rotate the jig body 1 by holding the holding portion 5 , which helps to reduce the force required by the operator to rotate the scraper 2 , and also makes it easier for the operator to rotate the scraper 2 .

[0043] At the same time, in another embodiment, the holding portion 5 can be externally connected to a driving device, such as a pneumatic wrench, and the output shaft of the pneumatic wrench is connected to the holding portion 5. When the driving wrench is actuated, the output shaft of the pneumatic wrench drives the holding portion 5 to rotate, thereby causing the jig body 1 to rotate, without the need to manually rotate the holding portion 5 to cause the jig body 1 to rotate, which is beneficial to improving the efficiency of scraping the water outlet of the rubber barrel.

[0044] Reference Figure 1 The end of the plug-in part 12 away from the limit part 11 is chamfered, so that the end surface of the plug-in part 12 away from the limit part 11 is relatively smooth, which is convenient for accurately and quickly inserting the plug-in part 12 into the mouth of the rubber barrel. At the same time, the inside of the plug-in part 12 is hollow. In this embodiment, the inside of the plug-in part 12 is hollowed out by a machine tool, which is conducive to reducing the weight of the plug-in part 12 itself, thereby reducing the overall weight of the fixture body 1, and facilitating the operator to hold and operate.

[0045] In another embodiment, please refer to Figure 2 A pre-cutting knife 6 is detachably provided on the limiting portion 11 . The pre-cutting knife 6 is arranged parallel to the scraping knife 2 . The rotation radius of the blade of the pre-cutting knife 6 is smaller than the rotation radius of the scraping knife 2 .

[0046] Specifically, the pre-cutting knife 6 is installed on the limiting portion 11 in the same manner as the scraping knife 2 is installed on the limiting portion 11. When the pre-cutting knife 6 is installed on the limiting portion 11, the pre-cutting knife 6 and the scraping knife 2 are centrally symmetrically arranged about the geometric center of the limiting portion 11.

[0047] At the same time, the length of the blade of the pre-cutting knife 6 extending along the limiting portion 11 is smaller than the length of the blade of the scraping knife 2 extending along the limiting portion 11. The purpose is: because the water outlets of the rubber barrel mouth have different shapes and sizes, the pre-cutting knife 6 is used to preliminarily cut off part of the water outlet, and at the same time, the scraping knife 2 cuts off the water outlet for the second time, which is beneficial to maintain the service life of the scraping knife 2 and reduce the probability of the scraping knife 2 being damaged or blunted due to excessive resistance on the scraping knife 2.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A scraping fixture for the spout of a plastic barrel for injection molding, characterized in that: The jig body (1) comprises a scraper (2) arranged on the jig body (1); when the jig body (1) is inserted into the mouth of a plastic barrel, the blade of the scraper (2) abuts against the mouth of the plastic barrel; when the jig body (1) rotates one circle along the mouth of the plastic barrel, the scraper (2) rotates one circle along the outer end surface of the mouth of the plastic barrel.

2. The scraping fixture for the nozzle of the injection molding plastic barrel according to claim 1, characterized in that: The jig body (1) comprises a limiting portion (11) and an inserting portion (12); the scraper (2) is arranged on the limiting portion (11); when the inserting portion (12) is inserted into the mouth of the plastic barrel, the surface of the limiting portion (11) facing the mouth of the plastic barrel abuts against the mouth of the plastic barrel; the scraper (2) is located outside the mouth of the plastic barrel; the diameter of the limiting portion (11) is greater than the diameter of the inserting portion (12); and the inserting portion (12) is transitionally matched with the mouth of the plastic barrel.

3. The scraping fixture for the nozzle of the injection molding plastic barrel according to claim 2, characterized in that: An inclined groove (3) is provided along the surface where the limiting portion (11) abuts against the mouth of the plastic barrel to the surface away from the mouth of the plastic barrel, and the scraper (2) is detachably arranged in the inclined groove (3).

4. The scraping fixture for the nozzle of the injection molding plastic barrel according to claim 3 is characterized by: The limiting portion (11) is provided with a fastening bolt (4), the fastening bolt (4) having a thread passing through the limiting portion (11) and extending into the inclined groove (3), and the fastening bolt (4) is used to lock the scraper (2).

5. The scraping fixture for the nozzle of the injection molding plastic barrel according to claim 4, characterized in that: A gripping portion (5) is provided on the surface of the limiting portion (11) away from the surface abutting against the mouth of the rubber barrel.

6. The scraping fixture for the nozzle of the injection molding plastic barrel according to claim 2, characterized in that: The plug-in portion (12) is hollow inside.

7. The scraping fixture for the nozzle of the injection molding plastic barrel according to claim 2, characterized in that: The end of the plug-in portion (12) away from the end connected to the limiting portion (11) is rounded.

8. The scraping fixture for the nozzle of the injection molding plastic barrel according to claim 2, characterized in that: The limiting portion (11) is detachably provided with a pre-cutting knife (6), the pre-cutting knife (6) being arranged in parallel with the scraping knife (2), and the rotation radius of the blade of the pre-cutting knife (6) being smaller than the rotation radius of the scraping knife (2).

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