Pen holder injection mold
By designing a pen rod injection mold with sliding upper molding and injection parts, the problem of difficulty in removing the pen rod is solved and efficient injection molding production is achieved.
Patent Information
- Application Number
- CN202422948058.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-11-29
AI Technical Summary
During the demolding process of existing pen rod injection molds, the formed pen rod is difficult to detach from the mold cavity, affecting the injection molding efficiency.
A pen rod injection mold is designed, including an upper mold and a lower mold. A sliding upper mold embryo and an injection member are provided on the upper mold, and an injection molding insert is provided on the lower mold. Through the moving design of mold closing and opening, the mold cavity is connected to form an injection molding cavity, and the pen rod is successfully disengaged during mold release.
The pen holder is successfully demolded, the injection molding efficiency is improved, and the molding pen holder can be removed from the mold smoothly.
Smart Images
Figure CN223173468U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molds, and particularly relates to a pen barrel injection mold. Background Art
[0002] A pen barrel injection mold is an injection mold used for producing pen barrels. After plastic particles are heated and melted, the molten plastic is injected into the mold cavity in the injection mold and fills to contact the inner wall of the entire mold cavity. Then, the cooling system in the injection mold can quickly cool and solidify the plastic in the mold cavity. When the plastic is completely solidified, the injection mold will separate to obtain the formed pen barrel parts. By repeating this process, pen barrel parts can be continuously produced.
[0003] When demolding the cooled and formed pen barrel after injection molding, the upper and lower molds of the pen barrel injection mold are opened, so that the formed pen barrel is separated from the mold cavity. However, in the existing pen barrel injection mold during the demolding process, the formed pen barrel cannot be well separated from the mold cavity, resulting in remaining in the mold cavity, which affects the injection efficiency of the pen barrel injection mold. Summary of the Utility Model
[0004] Based on this, it is necessary to provide a pen barrel injection mold.
[0005] The technical solution for the utility model to solve the above technical problems is as follows: A pen barrel injection mold includes:
[0006] An upper mold, the upper mold includes: an upper template and an upper mold core. An injection through hole is provided on the upper mold core. Two upper mold embryos are slidably arranged on the upper mold core. The two upper mold embryos move in a direction of approaching or separating from each other. Each upper mold embryo is provided with a mold cavity. When the two upper mold embryos are in contact with each other, the two mold cavities communicate to form a first cavity. The first end of the first cavity communicates with the injection through hole. The upper template moves in a direction of approaching or separating from the upper mold core. A glue injection part is arranged on the upper template. The glue injection part is movably inserted into the injection through hole and the first end of the first cavity.
[0007] A lower mold, a second cavity is provided on the lower mold. An injection insert is arranged on the lower mold. The first end of the injection insert is connected to the side wall of the second cavity. The second end of the injection insert protrudes to the outside of the second cavity.
[0008] When the upper mold and the lower mold are closed, the upper mold core and the two upper mold embryos are in contact with the lower mold. The second end of the first cavity communicates with the second cavity to form an injection cavity, and the second end of the injection insert is located in the first cavity.
[0009] In one embodiment, a chute is provided on the upper mold core. The upper mold embryo is slidably arranged in the chute.
[0010] In one embodiment, a guiding groove is formed in the side wall of the sliding groove, a guiding block is arranged on the upper die blank, and the guiding block is slidably arranged in the guiding groove.
[0011] In one embodiment, the pen barrel injection mold further includes: a driver, which is arranged on the upper mold core, and the driver is drivingly connected to the upper die blank.
[0012] In one embodiment, positioning columns are arranged on the upper mold core, positioning grooves are formed in the lower mold, and the positioning columns are movably inserted into the positioning grooves.
[0013] In one embodiment, abutting columns are arranged on the upper template, abutting through holes are formed in the upper mold core, the abutting columns are movably inserted into the abutting through holes, and the abutting columns protrude to the outside of the abutting through holes and movably abut against the upper die blank.
[0014] In one embodiment, the pen barrel injection mold further includes: a first guiding rod, a first guiding hole is formed in the upper mold, a second guiding hole is formed in the lower mold, a first end of the first guiding rod is connected to the side wall of the first guiding hole, and a second end of the first guiding rod is inserted into the second guiding hole.
[0015] In one embodiment, the pen barrel injection mold further includes: a limiting rod, a first limiting block is arranged on the upper mold core, a first limiting hole is formed in the first limiting block, a second limiting block is arranged on the lower mold, a second limiting hole is formed in the second limiting block, the limiting rod is inserted into the first limiting hole and the second limiting hole, first abutting blocks and second abutting blocks are respectively arranged at two ends of the limiting rod, the first abutting block movably abuts against the first limiting block, and the second abutting block movably abuts against the second limiting block.
[0016] In one embodiment, a glue injection port is formed in the upper template, and the glue injection port is communicated with the glue injection part.
[0017] In one embodiment, the pen barrel injection mold further includes: a liquid cooling pipe, a liquid cooling channel is formed in the lower mold, a liquid cooling cavity is formed in the injection molding insert, a first end of the liquid cooling pipe is communicated with the liquid cooling channel, and a second end of the liquid cooling pipe is located in the liquid cooling cavity.
[0018] The beneficial effects of the present utility model are as follows: A pen barrel injection mold provided by the present utility model has two upper mold embryos that slide on the upper mold core and move closer to or away from each other. When the two upper mold embryos slide to abut against each other, the mold cavities on the two upper mold embryos communicate to form a first cavity, and the injection through hole on the upper mold core communicates with the first end of the first cavity. The upper template moves in the direction of approaching or departing from the upper mold core, and the glue injection part on the upper template can pass through the injection through hole and be located inside the first end of the first cavity. In cooperation with the second cavity opened on the lower mold, the first cavity can communicate with the second cavity to form an injection cavity, and the injection insert on the lower mold is located inside the injection cavity, enabling a pen barrel to be injection molded inside the injection cavity. When demolding, the upper mold and the lower mold are separated, allowing one end of the formed pen barrel to be detached from the second cavity. Then, the upper template moves in the direction of departing from the upper mold core, causing the glue injection part to be detached from the first cavity. Finally, the two upper mold embryos move away from each other, enabling the other end of the formed pen barrel to be detached from the first cavity, thus enabling the injection molded pen barrel to be demolded well. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative efforts.
[0020] Figure 1 Structural schematic diagram of a pen barrel injection mold for an embodiment;
[0021] Figure 2 Cross-sectional structural schematic diagram of a pen barrel injection mold for an embodiment;
[0022] Figure 3 Stereo exploded structural schematic diagram of a pen barrel injection mold for an embodiment;
[0023] Figure 4 Structural schematic diagram of an upper mold for an embodiment;
[0024] Figure 5 Stereo exploded structural schematic diagram of an upper mold for an embodiment;
[0025] Figure 6 Structural schematic diagram of a lower mold for an embodiment.
[0026] In the attached drawings, 10 is an injection mold for a pen barrel; 100 is an upper mold; 101 is an injection cavity; 110 is an upper template; 111 is a glue injection part; 112 is an abutting post; 120 is an upper mold core; 121 is an injection through hole; 122 is a sliding groove; 123 is an abutting through hole; 200 is a lower mold; 201 is a second cavity; 300 is an upper mold base; 301 is a first cavity; 310 is a groove; 400 is a driver; 510 is a positioning post; 520 is a positioning groove; 600 is an injection insert; 610 is a liquid cooling cavity; 710 is a first guide rod; 711 is a first guide hole; 712 is a second guide hole; 720 is a second guide rod; 721 is a third guide hole; 722 is a fourth guide hole; 810 is a limiting rod; 811 is a first abutting block; 812 is a second abutting block; 820 is a first limiting block; 821 is a first limiting hole; 830 is a second limiting block; 831 is a second limiting hole; 900 is a glue injection port; 910 is a liquid cooling pipe; 920 is a liquid cooling channel. Detailed implementation mode
[0027] It should be noted that, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The following will further describe the technical solutions of the present invention in conjunction with the drawings of the embodiments of the present invention. The present invention is not limited to the following specific implementation modes.
[0028] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.
[0029] In one embodiment, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown in the figure, a pen barrel injection mold 10 includes an upper mold 100 and a lower mold 200. The upper mold 100 includes an upper template 110 and an upper mold core 120. An injection through hole 121 is formed on the upper mold core 120. Two upper mold embryos 300 are slidably arranged on the upper mold core 120, and the two upper mold embryos 300 move in a direction of approaching or separating from each other. Each upper mold embryo 300 is provided with a mold cavity 310. When the two upper mold embryos 300 are in contact with each other, the two mold cavities 310 communicate to form a first cavity 301. The first end of the first cavity 301 communicates with the injection through hole 121. The upper template 110 moves in a direction of approaching or separating from the upper mold core 120. A glue injection part 111 is arranged on the upper template 110, and the glue injection part 111 is movably inserted into the injection through hole 121 and the first end of the first cavity 301. A second cavity 201 is formed on the lower mold 200, and an injection insert 600 is arranged on the lower mold 200. The first end of the injection insert 600 is connected to the side wall of the second cavity 201, and the second end of the injection insert 600 protrudes outside the second cavity 201. When the upper mold 100 and the lower mold 200 are closed, the upper mold core 120 and the two upper mold embryos 300 abut against the lower mold 200. The second end of the first cavity 301 communicates with the second cavity 201 to form an injection cavity 101, and the second end of the injection insert 600 is located in the first cavity 301.
[0030] In this embodiment, two upper mold embryos 300 that move closer to or away from each other are slidably arranged on the upper mold core 120. When the two upper mold embryos 300 slide to abut against each other, the mold cavities 310 on the two upper mold embryos 300 can be aligned and communicate to form a first cavity 301, and the injection through hole 121 on the upper mold core 120 communicates with the first end of the first cavity 301. The upper template 110 moves in a direction of approaching or separating from the upper mold core 120. When the upper template 110 moves to abut against the upper mold core 120, the glue injection part 111 on the upper template 110 can pass through the injection through hole 121 and be located at the first end of the first cavity 301. When the upper template 110 moves in a direction away from the upper mold core 120, the glue injection part 111 on the upper template 110 can be separated from the first cavity 301. Cooperating with the second cavity 201 formed on the lower mold 200, when the mold is closed, the upper mold core 120 and the two upper mold embryos 300 abut against the lower mold 200, and the first cavity 301 can be aligned and communicate with the second cavity 201 to form an injection cavity 101, and the injection insert 600 on the lower mold 200 is located in the injection cavity 101, that is, the first end of the injection insert 600 is located in the second cavity 201, and the second end of the injection insert 600 is located in the first cavity 301, so that a pen barrel can be injection-molded in the injection cavity 101.
[0031] In this embodiment, when demolding the pen barrel after injection molding, the upper mold 100 and the lower mold 200 are separated, enabling one end of the formed pen barrel to be detached from the second cavity 201. Then, the upper template 110 moves away from the upper mold core 120, causing the injection molding part 111 to be detached from the first cavity 301, that is, the injection molding part 111 is separated from the other end of the formed pen barrel. Finally, the two upper mold blanks 300 move away from each other, enabling the other end of the formed pen barrel to be detached from the first cavity 301, thus enabling good demolding to obtain the injection-molded pen barrel.
[0032] In one embodiment, as Figure 5 shown, a chute 122 is provided on the upper mold core 120, and the upper mold blank 300 is slidably disposed in the chute 122. Specifically, by providing a chute 122 on the side of the upper mold blank 300 away from the upper template 110, the two upper mold blanks 300 are respectively slidably disposed in the chute 122, enabling the two upper mold blanks 300 to slide on the upper mold core 120 and move in the direction of approaching or separating from each other.
[0033] In one embodiment, guide grooves are provided on the side walls of the chute 122, and guide blocks are provided on the upper mold blank 300, and the guide blocks are slidably disposed in the guide grooves. Specifically, the number of guide grooves is set to two, and the two guide grooves are oppositely disposed on the side walls of the chute 122. Guide blocks are respectively provided on both sides of each upper mold blank 300. By the guide blocks being slidably disposed in the guide grooves, a guiding effect can be achieved, enabling the two upper mold blanks 300 to better move in the direction of approaching or separating from each other, so that the mold grooves 310 on the two upper mold blanks 300 can better align and communicate to form the first cavity 301.
[0034] In one embodiment, as Figure 3 、 Figure 4 and Figure 5 shown, the pen barrel injection mold 10 further includes: a driver 400, the driver 400 is disposed on the upper mold core 120, and the driver 400 is drivingly connected to the upper mold blank 300. Specifically, the number of drivers 400 is set to two, and the two drivers 400 are spaced apart on both sides of the upper mold core 120. Each driver 400 is drivingly connected to an upper mold core 120, and the driver 400 is a cylinder, thereby enabling the two upper mold blanks 300 to move in the direction of approaching or separating from each other.
[0035] In one embodiment, as Figure 4 、 Figure 5 and Figure 6As shown, positioning posts 510 are provided on the upper mold core 120, positioning grooves 520 are formed on the lower mold 200, and the positioning posts 510 are movably inserted into the positioning grooves 520. Specifically, the number of positioning posts 510 is set to be multiple, and the positioning posts 510 are evenly distributed on the upper mold core 120. The number of positioning grooves 520 is equal to the number of positioning posts 510. When the upper mold 100 and the lower mold 200 are closed, by inserting the positioning posts 510 on the upper mold core 120 into the positioning grooves 520 on the lower mold 200, a positioning function can be achieved, enabling the first cavity 301 to accurately align and communicate with the second cavity 201 to form the injection cavity 101.
[0036] In one embodiment, as Figure 2 shown, abutting posts 112 are provided on the upper template 110, abutting through holes 123 are formed on the upper mold core 120, the abutting posts 112 are movably inserted into the abutting through holes 123, and the abutting posts 112 protrude to the outside of the abutting through holes 123 and movably abut against the upper mold base 300. Specifically, the upper template 110 moves in the direction close to or away from the upper mold core 120. When the upper template 110 moves to abut against the upper mold core 120, the abutting posts 112 on the upper template 110 can pass through the abutting through holes 123 and abut against the outer surface of the upper mold base 300. When the upper template 110 moves in the direction away from the upper mold core 120, the abutting posts 112 on the upper template 110 can move away from the upper mold base 300. In this way, by the abutting posts 112 abutting against the outer surface of the upper mold base 300, a limiting function can be achieved, and the moving distance of the glue injection part 111 on the upper template 110 can be limited, thereby avoiding the situation that the glue injection part 111 on the upper template 110 overly abuts against the second end of the injection insert 600 in the first cavity 301, playing a role in protecting the glue injection part 111.
[0037] In one embodiment, as Figure 4 、 Figure 5 and Figure 6 shown, the pen barrel injection mold 10 further includes: a first guide rod 710. A first guide hole 711 is formed on the upper mold 100, a second guide hole 712 is formed on the lower mold 200. The first end of the first guide rod 710 is connected to the side wall of the first guide hole 711, and the second end of the first guide rod 710 is inserted into the second guide hole 712. Specifically, first through holes are respectively formed on the upper template 110 and the upper mold core 120 to communicate and form the first guide hole 711. The first end of the first guide rod 710 is connected to the upper template 110. By arranging the first guide rod 710 in the first guide hole 711 and the second guide hole 712 on the upper mold 100 and the lower mold 200, a guiding function can be achieved, enabling the upper mold 100 and the lower mold 200 to perform mold opening or mold closing well.
[0038] In one embodiment, as Figure 4 , Figure 5 and Figure 6 shown, the pen barrel injection mold 10 further includes: a second guide rod 720. A third guide hole 721 is formed on the upper mold 100, and a fourth guide hole 722 is formed on the lower mold 200. The first end of the second guide rod 720 is connected to the side wall of the fourth guide hole 722, and the second end of the second guide rod 720 is inserted into the third guide hole 721. Specifically, second through holes are respectively formed on the upper template 110 and the upper mold core 120 and communicate to form the third guide hole 721. By arranging the second guide rod 720 in the third guide hole 721 and the fourth guide hole 722 on the upper mold 100 and the lower mold 200, the guiding function can be further enhanced, enabling the upper mold 100 and the lower mold 200 to perform mold opening or mold closing better.
[0039] In one embodiment, as Figure 4 and Figure 6 shown, the pen barrel injection mold 10 further includes: a limiting rod 810. A first limiting block 820 is arranged on the upper mold core 120, a first limiting hole 821 is formed on the first limiting block 820, a second limiting block 830 is arranged on the lower mold 200, a second limiting hole 831 is formed on the second limiting block 830, the limiting rod 810 is inserted into the first limiting hole 821 and the second limiting hole 831, and first abutting blocks 811 and second abutting blocks 812 are respectively arranged at both ends of the limiting rod 810. The first abutting block 811 abuts against the first limiting block 820 movably, and the second abutting block 812 abuts against the second limiting block 830 movably. Specifically, the number of the first limiting blocks 820 is set to be multiple, and the first limiting blocks 820 are evenly distributed on the outer surface of the upper mold core 120. The number of the second limiting blocks 830 and the number of the limiting rods 810 are equal to the number of the first limiting blocks 820. The first limiting hole 821 on each first limiting block 820 is aligned with the second limiting hole 831 on a second limiting block 830, and the limiting rod 8l0 is located in the first limiting hole 821 and the second limiting hole 831, that is, the limiting rod 810 is movably arranged between the first limiting block 820 and the second limiting block 830. By the first abutting block 811 on the limiting rod 810 abutting against the first limiting block 820 and the second abutting block 812 abutting against the second limiting block 830, the mold opening distance between the upper mold 100 and the lower mold 200 can be limited, facilitating the mold closing between the upper mold 100 and the lower mold 200 again.
[0040] In one embodiment, as Figure 2 and Figure 3As shown, a glue injection port 900 is formed on the upper template 110, and the glue injection port 900 is communicated with the glue injection member 111. Specifically, the glue injection port 900 is formed on the outer surface of the upper template 110. A glue injection channel is arranged inside the upper template 110. The glue injection port 900 is communicated with the inside of the glue injection member 111 through the glue injection channel. In this way, the molten plastic can move to the inside of the glue injection member 111 through the glue injection port 900 and the glue injection channel, and then be injected into the injection cavity 101 through the glue injection member 111, and the pen barrel is obtained by injection molding.
[0041] In one embodiment, as Figure 2 shown, the pen barrel injection mold 10 further includes: a liquid cooling pipe 910. A liquid cooling channel 920 is formed on the lower mold 200, and a liquid cooling cavity 610 is formed inside the injection insert 600. The first end of the liquid cooling pipe 910 is communicated with the liquid cooling channel 920, and the second end of the liquid cooling pipe 910 is located inside the liquid cooling cavity 610. Specifically, by providing the liquid cooling pipe 910, the liquid cooling pipe 910 is communicated with the liquid cooling channel 920 and the liquid cooling cavity 610 respectively. In this way, the external coolant can be transported into the liquid cooling pipe 910 through the liquid cooling channel 920, and then enter the liquid cooling cavity 610 of the injection insert 600, and can cool and solidify the plastic in the injection cavity 101, so that the pen barrel can be quickly obtained by injection molding.
[0042] Compared with the prior art, the present utility model has at least the following advantages:
[0043] A pen barrel injection mold provided by the present utility model has two upper mold embryos which slide on the upper mold core and move towards or away from each other. When the two upper mold embryos slide to abut against each other, the mold cavities on the two upper mold embryos are communicated to form a first cavity, and the injection through hole on the upper mold core is communicated with the first end of the first cavity. The upper template moves in the direction of approaching or departing from the upper mold core. The glue injection member on the upper template can pass through the injection through hole and be located inside the first end of the first cavity. Cooperating with the second cavity formed on the lower mold, the first cavity can be communicated with the second cavity to form an injection cavity, and the injection insert on the lower mold is located inside the injection cavity, and the pen barrel can be obtained by injection molding inside the injection cavity. When demolding, the upper mold and the lower mold are separated, so that one end of the formed pen barrel can be separated from the second cavity, and then the upper template moves in the direction of departing from the upper mold core, so that the glue injection member is separated from the first cavity. Finally, the two upper mold embryos move in the direction of departing from each other, so that the other end of the formed pen barrel can be separated from the first cavity, and thus the injection molded pen barrel can be well demolded.
[0044] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.
Claims
1. A pen barrel injection mold, characterized in that, Comprising: An upper mold, the upper mold includes: an upper template and an upper mold core. An injection through-hole is provided on the upper mold core. Two upper mold blanks are slidably arranged on the upper mold core. The two upper mold blanks move in a direction of approaching or separating from each other. Each upper mold blank is provided with a mold cavity. When the two upper mold blanks are in contact with each other, the two mold cavities communicate to form a first cavity. The first end of the first cavity communicates with the injection through-hole. The upper template moves in a direction of approaching or separating from the upper mold core. A glue injection member is provided on the upper template. The glue injection member is movably inserted into the injection through-hole and the first end of the first cavity. A lower mold, a second cavity is provided on the lower mold. An injection insert is provided on the lower mold. The first end of the injection insert is connected to the side wall of the second cavity. The second end of the injection insert protrudes to the outside of the second cavity. When the upper mold and the lower mold are closed, the upper mold core and the two upper mold blanks are in contact with the lower mold. The second end of the first cavity communicates with the second cavity to form an injection cavity. And the second end of the injection insert is located in the first cavity.
2. The pen barrel injection mold according to claim 1, characterized in that, A chute is provided on the upper mold core. The upper mold blank is slidably arranged in the chute.
3. The pen barrel injection mold according to claim 2, wherein, A guiding groove is provided on the side wall of the chute. A guiding block is provided on the upper mold blank. The guiding block is slidably arranged in the guiding groove.
4. The pen barrel injection mold according to claim 3, characterized in that, Further comprising: A driver, the driver is provided on the upper mold core. The driver is drivingly connected to the upper mold blank.
5. The pen barrel injection mold according to claim 1, characterized in that, A positioning post is provided on the upper mold core. A positioning groove is provided on the lower mold. The positioning post is movably inserted into the positioning groove.
6. The pen barrel injection mold according to claim 5, characterized in that, A abutting post is provided on the upper template. An abutting through-hole is provided on the upper mold core. The abutting post is movably inserted into the abutting through-hole. And the abutting post protrudes to the outside of the abutting through-hole and abuts against the upper mold blank movably.
7. The pen barrel injection mold according to claim 1, characterized in that, Further comprising: A first guiding rod, a first guiding hole is provided on the upper mold. A second guiding hole is provided on the lower mold. The first end of the first guiding rod is connected to the side wall of the first guiding hole. The second end of the first guiding rod is inserted into the second guiding hole.
8. The pen barrel injection mold according to claim 7, wherein, Further comprising: A limiting rod, a first limiting block is provided on the upper mold core. A first limiting hole is provided on the first limiting block. A second limiting block is provided on the lower mold. A second limiting hole is provided on the second limiting block. The limiting rod is inserted into the first limiting hole and the second limiting hole. First abutting blocks and second abutting blocks are respectively provided at both ends of the limiting rod. The first abutting block abuts against the first limiting block movably. The second abutting block abuts against the second limiting block movably.
9. The pen barrel injection mold according to claim 1, characterized in that, A glue injection port is provided on the upper template. The glue injection port communicates with the glue injection member.
10. The pen barrel injection mold according to claim 1, characterized in that, Further comprising: A liquid cooling pipe, a liquid cooling channel is provided on the lower mold. A liquid cooling cavity is provided in the injection insert. The first end of the liquid cooling pipe communicates with the liquid cooling channel. The second end of the liquid cooling pipe is located in the liquid cooling cavity.